Customer: "I prepaid 70% of the total cost of $127. 50 last week. "

Employee: "Okay. The total you still owe is

(d) Probability of at least one major earthquake in the next 49 years is 0.9884, and (e) the probability of no major earthquakes in the next 49 years is 0.0116.

We will use the Poisson distribution to compute the probabilities. First, we need to find the value of λ (average number of earthquakes in a given time period).

(d) Compute the probability of at least one major earthquake in the next 49 years:

1. Calculate λ for 49 years:

(2.0 earthquakes / 22 years) * 49 years = 4.45 (rounded to the nearest hundredth)

2. Compute the probability of no major earthquakes (P(0)) in the next 49 years using Poisson distribution formula:

P(0) = (e^(-λ) * (λ^0)) / 0! = (e^(-4.45) * (4.45^0)) / 1 = 0.0116 (rounded to 4 decimal places)

3. Compute the probability of at least one major earthquake:

P(at least 1) = 1 - P(0) = 1 - 0.0116 = 0.9884

So, the probability of at least one major earthquake in the next 49 years is 0.9884 (rounded to 4 decimal places).

(e) Compute the probability of no major earthquakes in the next 49 years:

As calculated in step (d), the probability of no major earthquakes in the next 49 years is 0.0116 (rounded to 4 decimal places).

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The estimate converges to x ≈ 3.14159265358979, the solution to the equation tan(x) = 0 to that many decimal places as well.

To use Newton's method to solve the equation tan(x) = 0 with an initial estimate of xo = 3, we need to follow these steps:

1. Find the derivative of the function f(x) = tan(x): f'(x) = sec^2(x).
2. Use the formula for Newton's method: xn+1 = xn - f(xn)/f'(xn)
3. Substitute f(x) = tan(x) and f'(x) = sec^2(x) into the formula: xn+1 = xn - tan(xn)/sec^2(xn)
4. Plug in xo = 3 and use your calculator to find xn+1:
x1 = xo - tan(xo)/sec^2(xo) = 3 - tan(3)/sec^2(3) ≈ 3.1425465430743
x2 = x1 - tan(x1)/sec^2(x1) ≈ 3.14159265358979
x3 = x2 - tan(x2)/sec^2(x2) ≈ 3.14159265358979

We can see that the estimate converges to x ≈ 3.14159265358979, which is the value of pi to 14 decimal places. Therefore, we can estimate the solution to the equation tan(x) = 0 to that many decimal places as well.

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The temperature at 11:00 A.M. yesterday was 78°F.

To find the temperature at 11:00 A.M., we need to subtract 9 from the temperature at 4:00 P.M. because the temperature rose 9 degrees between those times. So, we can use the following equation:

Temperature at 11:00 A.M. = Temperature at 4:00 P.M. - 9

We know that the temperature at 4:00 P.M. was 87°F, so we can substitute that into the equation and solve for the temperature at 11:00 A.M.:

Temperature at 11:00 A.M. = 87 - 9

Temperature at 11:00 A.M. = 78°F

Therefore, the temperature at 11:00 A.M. yesterday was 78°F.

It's important to remember that when solving word problems like this, we need to pay close attention to the details and make sure we understand what the question is asking us to find. In this case, we needed to use the information given about the temperature rising 9 degrees between 11:00 A.M. and 4:00 P.M. to find the temperature at 11:00 A.M. By using the equation provided and substituting in the known values, we were able to solve for the unknown temperature at 11:00 A.M.

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At the end of 5 years, Sam will have paid $1,900 in interest to the bank. This calculation assumes that the interest rate remains constant and is applied on a simple basis, rather than being compounded over the 5-year period.

Sam makes a cash deposit of $8,000 on a used car and is charged an interest rate of 4.75% per year by the bank. To calculate the interest he will pay at the end of 5 years, we can use the formula for simple interest, which is I = P × R × T, where I is the interest, P is the principal (the initial deposit), R is the interest rate, and T is the time in years.

In this case, P = $8,000, R = 4.75% (or 0.0475 in decimal form), and T = 5 years. Plugging these values into the formula, we get:

I = $8,000 × 0.0475 × 5

I = $1,900

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Sam will pay $1,900 in interest to the bank at the end of 5 years.

The interest rate is 4.75% per year, which can be written as 0.0475 as a decimal. The amount of interest that Sam will pay after 5 years can be calculated using the simple interest formula:

Interest = Principal x Rate x Time

where Principal is the initial deposit, Rate is the interest rate, and Time is the length of time the interest is charged for.

In this case, the Principal is $8,000, the Rate is 0.0475, and the Time is 5 years. Plugging these values into the formula, we get:

Interest = $8,000 x 0.0475 x 5

Interest = $1,900

Therefore, Sam will pay $1,900 in interest to the bank at the end of 5 years.

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Answer:

There is a cylinder with a height of 6 centimeters and a radius of r1, which has a volume of 302 cubic centimeters. It's fascinating to see how the volume of different shapes can vary based on their dimensions.

MARK AS BRAINLIEST!!!

The company's profit in the year 2005 would be approximately $10.5 million.

Let's calculate the company's profit for the year 2005 using the given information.

Initial profit in 2001: $7.2 million
Annual profit increase: 11%

We need to find the profit for 2005, which is 4 years after 2001.

Step 1: Identify the formula for compound interest, which can be applied to profit increase:
Future Profit = Initial Profit * (1 + Profit Increase Rate)^Number of Years

Step 2: Plug in the values:
Future Profit [tex]= $7.2 million * (1.11)^4[/tex]
Step 3: Calculate the result:
Future Profit [tex]= $7.2 million * (1.11)^4[/tex]
Future Profit = $7.2 million [tex]* 1.4641[/tex]
Future Profit = $10.54152 million

Step 4: Round the result to the nearest tenth of a million dollars:
Future Profit ≈ $10.5 million

So, the company's profit in the year 2005 would be approximately $10.5 million.

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Cutting the height of a cylinder in half would divide its volume by 2, while doubling the radius would multiply its volume by 4. Therefore, the overall effect on the volume of the cylinder is to multiply it by 2. So, if the original volume of the cylinder was V, after cutting the height in half and doubling the radius, the new volume would be 2V.

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Peter will need 60 square inches of gold paper to cover the entire square pyramid for his History class.

You need to find the total surface area of the square pyramid that Peter creates for his History class to determine how much gold paper he will need. This can be done as follows.

1: Identify the given information.

Base area: 20 square inches

Triangle area: 10 square inches

2: Determine the number of triangles in a square pyramid.

A square pyramid has 4 triangular faces.

3: Calculate the total area of the triangular faces.

Multiply the area of one triangle by the number of triangles: 10 square inches x 4 = 40 square inches.

4: Calculate the total surface area of the pyramid.

Add the base area and the total area of the triangular faces: 20 square inches (base) + 40 square inches (triangles) = 60 square inches.

Hence, the gold paper to cover the entire square pyramid is 60 square inches.

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The statement is True.

The statement "95% confidence interval (5.623 to 6.377)" means that if we were to repeat this process of taking 100 samples from the population and constructing a confidence interval for each sample, then about 95% of those intervals would contain the true population mean.

This is the definition of a confidence interval at a certain level of confidence (in this case, 95%). Therefore, the statement is true.

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The annual rate as a percent is approximately 4.86% per year.

To find the annual rate as a percent, we first need to understand the function that Robert is using. The function [tex]f(x) = 1000(1.0375)^x[/tex] represents the amount of money Robert earns each year based on his initial investment of $1000 and the interest rate of 3.75% (as represented by the value 1.0375, which is 1 + 0.0375).

To calculate the annual rate as a percent, we need to isolate the interest rate from the function. We can do this by using logarithms. Taking the logarithm of both sides of the equation, we get:

log(f(x)) = log(1000) + x*log(1.0375)

Now, we can solve for the interest rate (represented by the value of 1.0375) by dividing both sides of the equation by x and then taking the antilog of the result:

1.0375 = antilog[(log(f(x)) - log(1000))/x]

Using this formula, we can plug in any value for x (representing the number of years Robert has held his investment) and find the corresponding interest rate. For example, if Robert has held his investment for 5 years, we can calculate the interest rate as:

1.0375 = antilog[(log(f(5)) - log(1000))/5]

This gives us an interest rate of approximately 4.86% per year. So, to answer the original question, the annual rate as a percent is approximately 4.86%.

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Answer:

1) I think the graph is suggesting that a higher level of skill, or degree, will ultimately help you get a better job easier and faster.

2) With a skill level of five, you can become a sales worker or labourer. It is a low percentage of people with a skill level five to become community and personal service workers.

Thanks for reading! Always work toward your dreams! :)

A) Internal goods in mathematics include problem-solving skills, logical thinking, analytical reasoning, and a deep understanding of mathematical concepts.

B) Coercive power, on the other hand, might manifest when individuals impose their methods or beliefs on others, potentially stifling creativity and discouraging alternative perspectives.
C) Teachers affirm their students' dignity as creative human beings in the ways they do mathematics by creating a safe space, encourage exploration and expression, value the learning process, celebrate creativity and originality in problem-solving

A) When you share these goods with others, they multiply in the sense that others also develop these skills, fostering collaboration, and generating new ideas, ultimately contributing to the overall progress in the field of mathematics.
B) Creative power in mathematical settings can be seen when individuals or teams come up with innovative solutions to problems, develop new theories, or find unique ways to apply mathematics to real-world situations.
C) Teachers can affirm their students' dignity as creative human beings in the ways they do mathematics by:
1. Encouraging students to explore multiple solution methods and strategies, allowing them to find the approach that best suits their thinking style.
2. Valuing each student's input, ideas, and questions, creating a safe and supportive environment for them to express their thoughts.
3. Challenging students with open-ended problems that require creativity and critical thinking, emphasizing the importance of understanding concepts over rote memorization.
4. Recognizing and celebrating each student's unique strengths and contributions to the learning process, promoting a growth mindset and a sense of accomplishment.

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Drawing a number line is a useful way to visualize the relationship between tons and pounds and can help make conversions easier to understand.

If we were to draw a number line that shows the relationship between tons and pounds, we would start with the fact that one ton is equivalent to 2000 pounds. We would then draw tick marks on the number line for every whole number from 0 to 10, with each tick mark representing 100 pounds. So, the tick mark at 0 would represent 0 pounds, the tick mark at 1 would represent 100 pounds, the tick mark at 2 would represent 200 pounds, and so on. The tick mark at 20 would represent 2000 pounds, or one ton.

We could then continue the number line past 20 to show larger quantities of tons and pounds, with each additional tick mark representing another ton (2000 pounds). For example, the tick mark at 30 would represent 3000 pounds, or 1.5 tons, the tick mark at 40 would represent 4000 pounds, or 2 tons, and so on.

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Every day, a baker produces 20 loaves of bread. The loaves come in white or brown. It would take him 30 days to make 180 loaves of brown bread.

Let the ratio be x,

We have been given the ratio of 7 : 3 in which 3 part is of brown bed.

So the number of brown bread will be 3x and white bread will be 7x.

Now, we have to find out the days for 180 loaves of brown bread. This means that 3x = 180. Now we will find out the value of x to find the total loaves of bread from this equation.

3x = 180

x = 180 / 3

x = 60

So, the total amount of bread = brown bread + white bread

Total amount of bread = 3x + 7x

= 10x

= 10 × 60

= 600

We know that in 20 loaves of bread are made in one day, so

time taken to make 600 loaves of bread = 600 / 20

= 30 days

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The slope of the linear function that models the data in the table is -1.5. It was calculated by using the formula for slope (change in y divided by change in x) and plugging in the given coordinates. This means that for every increase of 2 in the x-value, the y-value decreases by 3.

To find the slope of the linear function that models the data in the table, we can use the slope formula

slope = (change in y)/(change in x)

We can choose any two points from the table to calculate the slope. Let's choose the points (-2,6) and (0,3)

change in y = 3 - 6 = -3

change in x = 0 - (-2) = 2

So the slope is

slope = (-3)/(2) = -1.5

Therefore, the slope of the linear function that models the data in the table is -1.5.

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--The given question is incomplete, the complete question is given

" What is the slope of the linear function that models the data in the table? "--

A bowling ball moving at 11 meters per second will have approximately 537.64 joules of energy, rounded to the nearest hundredth.

The kinetic energy (E) of a moving object varies directly with the square of its velocity (v). To write the equation relating E to v, we can use the formula: E = k * v^2, where k is a constant of proportionality. Given a bowling ball traveling at 15 meters per second with 1000 joules of energy, we can find the value of k:

1000 = k * (15^2)
1000 = k * 225
k ≈ 4.44

So, the equation relating the kinetic energy and velocity is: E ≈ 4.44 * v^2.

Now, we want to find the energy of the bowling ball when it's moving at 11 meters per second. Using the derived equation:

E ≈ 4.44 * (11^2)
E ≈ 4.44 * 121
E ≈ 537.64

Therefore, a bowling ball moving at 11 meters per second will have approximately 537.64 joules of energy, rounded to the nearest hundredth.

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Complete question:

The kinetic energy of a moving object varies directly with the square of its velocity. A bowling ball traveling at 15 meters per second has about 1000 joules of energy.

Write the equation that relates the kinetic energy, E, to its velocity, v.

Round your answer to the nearest hundredth.

About how much energy will a bowling ball have if it is moving at 11 meters per second?

Use your answer from part one. Round your answer to the nearest hundredth

The true statement about Amy's weekly income is that her net income is less than $120 (option c).

To find out the true statement about Amy's weekly income, we need to calculate her gross income first.

Step 1: Multiply the hours worked per week by the hourly wage.
Amy works 15 hours a week and earns $8 an hour, so:
15 hours * $8/hour = $120

Now we have her gross income, which is $120.

Comparing the gross income to the statements given:

a) Her net income is more than $120: False, as net income is usually less than gross income due to deductions (taxes, social security, etc.).
b) Her gross income is less than $120: False, as we calculated her gross income to be exactly $120.
c) Her net income is less than $120: True since net income is generally less than the gross income due to deductions.
d) Her gross income is more than $120: False, as her gross income is exactly $120.

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Answer:

y = (-2/5)x+b

Step-by-step explanation:

First plug these into the y=mx+b equation:

-5 = (-2/5)(10)+b.

Then solve for b:

-5 = -4+b

Add 4 to both sides:

-1 =b.

Therefore, the equation of the line is y = (-2/5)x+b. You can also double check this by plugging 10 into the equation we just obtained.

The equation of the line that passes though (-2, 0 and have a slope of 1 is y = x + 2.

The equation of a line can be represented in slope in intercept form as follows:

y = mx + b

where

Therefore, the slope of a line is the change in the dependent variable with respect to the change in the independent variables.

Hence,

slope = 1 and the line passes through(-2, 0).

Therefore,

y = x + b

let's find b using (-2, 0)

0 = -2 + b

b = 2

Therefore, the equation is y = x + 2.

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Answer:

[tex]\overset{\frown}{BX}=\angle BCX=2\angle BNX[/tex]

Step-by-step explanation:

A chord is a straight line joining two points on the circle.

Therefore, the chords in the given diagram are BN and XN.

An inscribed angle is the angle formed (vertex) when two chords meet at one point on a circle.

Therefore, the inscribed angle in the given diagram is BNX.

An intercepted arc is the arc that is between the endpoints of the chords that form the inscribed angle.

Therefore, the intercepted arc in the given diagram is BX.

The radius is a straight line joining the center to a point on the circle.

Therefore, the radii in the given diagram are CB and CX.

The central angle of a circle is the angle formed at its center by two radii.

Therefore, the central angle in the given diagram is BCX.

[tex]\hrulefill[/tex]

The measure of the central angle of a circle is equal to the measure of the corresponding intercepted arc. Therefore:

    [tex]\angle BCX=\overset{\frown}{BX}[/tex]

According to the Inscribed Angle Theorem, the measure of an inscribed angle is half the measure of the intercepted arc. Therefore:

    [tex]\angle BNX=\dfrac{1}{2}\overset{\frown}{BX}[/tex]

So the relationship between the arc BX, the central angle BCX and the inscribed angle BNX is that both the arc and central angle are equal to twice the inscribed angle:

[tex]\overset{\frown}{BX}=\angle BCX=2\angle BNX[/tex]

The number of pints of paint that the club will need is given as follows:

2 pints of paint.

Before obtaining the amount of paint, we must obtain the surface area of the figure.

The figure in this problem is composed as follows:

Hence the surface area is given as follows:

S = 19 x 8 + 19 x 6 + 2 x 0.5 x 6 x 8

S = 314 in².

If one pint of paint covers 200 square inches, hence the number of pints is given as follows:

314/200 = 2 -> rounded up, as there is not a decimal amount of pints, and one pint is not enough.

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Therefore, the correct sequence of transformations is:

Dilation by a scale factor of 2, centered at the origin.

Translation of 7 units to the left.

This is equivalent to option D.

To move AABC onto ADEF, we need to perform a sequence of transformations that will map each point of AABC onto the corresponding point of ADEF. Let's first label the vertices of AABC and ADEF as shown:

We can see that A and D have the same coordinates, so we only need to map B, C, and A' to E, F, and D', respectively.

Option A suggests a dilation by a scale factor of 2, centered at the origin, followed by a reflection over the y-axis. This transformation will map B to E, but it will also map C to C' which is not the same as F. Moreover, A' will be mapped to a point that is reflected over the y-axis and does not coincide with D. Therefore, option A is not the correct answer.

Option B suggests a translation of 7 units to the right, followed by a dilation by a scale factor of 2 centered at the origin. This transformation will not map B to E, but it will map A' to D', and C to a point that is 7 units to the right of F. Therefore, option B is not the correct answer either.

Option C suggests a dilation by a scale factor of 2, centered at the origin, followed by a translation of 7 units to the right. This transformation will map A' to D', and B to a point that is 7 units to the right of E. However, it will also map C to a point that is 7 units to the right of F, which is not the same as F. Therefore, option C is not the correct answer.

Option D suggests a dilation by a scale factor of 2, centered at the origin, followed by a translation of 7 units to the left. This transformation will map B to E, and A' to D', but it will also map C to a point that is 7 units to the left of F. However, if we reflect the resulting figure over the y-axis, we obtain the desired result.

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Astha's account was greater than the amount of money in Henry's account is:

5700 + 100x > 75x

Let's start by finding the total amount of money deposited by Astha and Henry after x weeks.

Astha deposited $100 into her account each week for x weeks, so the total amount she deposited is 100x.

Similarly, Henry deposited $75 into his account each week for x weeks, so the total amount he deposited is 75x.

To find the inequality that represents the situation when the amount of money in Astha's account was greater than the amount of money in Henry's account, we need to compare the total amount of money each of them deposited.

Astha started with $5,700 and deposited $100 each week for x weeks, so the total amount of money in her account after x weeks is:

5700 + 100x

Henry started with zero dollars and deposited $75 each week for x weeks, so the total amount of money in his account after x weeks is

75x

Therefore, the inequality that represents the situation when the amount of money in Astha's account was greater than the amount of money in Henry's account is:

5700 + 100x > 75x

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809,304 people live in Charlotte, rounded to the nearest person.

To calculate the approximate population of Charlotte, you can use the given information:

Population density = 2,720 people per square mile
Area of Charlotte = 297.7 square miles

To find the total population, multiply the population density by the area:

Total population = Population density × Area
Total population = 2,720 people/sq mile × 297.7 sq miles

Total population ≈ 809,304 people

So, approximately 809,304 people live in Charlotte, rounded to the nearest person.

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1. The dollar decrease of Jane's investment account is $2,166.

2. The amount in Jane's account at the end was $5,434.

To get the decrease in dollars, we need to calculate 28.5% of $7,600.

The dollar decrease will be:

= 0.285 x $7,600

= $2,166

To find the amount, we must subtract the decrease from the initial amount. So, the end balance will be:

= $7,600 - $2,166

= $5,434

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Therefore, the correct answer is option (b) c + 0.92.

The expression that represents Evelyn's grocery bill after the 8% discount is:

c - 0.08c

This can be simplified as:

0.92c

Therefore, the correct answer is option (b) c + 0.92.

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The expression that represents Evelyn's grocery bill after the coupon is applied is 0.92c. Therefore, the correct option is D.

If Evelyn has a coupon that will reduce her grocery bill by 8% and c represents the cost of her groceries, the expression that represents Evelyn's grocery bill after using the coupon is 0.92c. It is determined as follows.

1. The coupon reduces the bill by 8%, which means Evelyn will pay 100% - 8% = 92% of the original cost.

2. Convert the percentage to a decimal: 92% = 0.92

3. Multiply the original cost (c) by the decimal: 0.92c

So, the correct answer is option D: 0.92c.

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Therefore, a person starts with a hand of cards without any Wild (Wild or Wild draw four) is 0.5741

and a number of outcomes of event 'B' is 16007560800.

total number of cards = N = 108

wild cards = 4

wild draw four = 4

we have 4 different colors and each color has 25 cards with break down as

zero numbered card = 1

numbered from 1 to 9 = 2 each (total 18)

skip = 2

draw two = 2

reverse = 2

skip, draw two and reverse are action cards

therefore, in a deck of UNO we have 3*2*4 = 24 action cards

a seven-card hand is dealt to each player from a well shuffled pack of card.

therefore, as each card is equally likely, we have total possible outcomes as 108C7

Ω is a event of every possible outcome and it has 108C7 = 27883218168 elements

an equally likely model is a model where equal weights are attached to every outcome and thus the probability of each outcomes become equal.

1) let 'A' be the event a whole hand is of action cards.

we have a total of 24 action cards in a UNO deck of 108 cards.and we have to draw a hand of 7 cards

total number of outcomes for event 'A' is 24C7

therefore, the probability that a player starting with a whole hand of action cards is

= [tex]24C7\n108C7\n[/tex]

= 0.0000124

therefore, a person starts with a whole hand of action card is 0.0000124

and the number of outcomes of event 'A' is 346104

2) let 'B' be the event that a hand of card is without any wild card

therefore we have a total of 100 cards that do not have any wild ( wild or wild draw four) cards

therefore a hand of 7 out of 100 cards for event 'B' can be drawn in 100C7 total ways

therefore, the probability that a player starts with a hand of cards without any Wild (Wild or Wild draw four) cards is

= [tex]100C7\n108C7\n[/tex]

= 0.5741

therefore, a person starts with a hand of cards without any Wild (Wild or Wild draw four) is 0.5741

and the number of outcomes of event 'B' is 16007560800.

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A 16-inch radius tire would require 75 revolutions to travel the same distance as a 12-inch radius tire that made 100 revolutions.

Let's start by defining some variables. Let "r" represent the radius of the tire and "n" represent the number of revolutions it makes over a fixed distance. We are given that the number of revolutions is inversely proportional to the radius of the tire. This means that as the radius increases, the number of revolutions decreases, and vice versa. We can express this relationship mathematically as follows:

n = k/r

Here, "k" is the constant of variation, which remains the same for any given tire traveling over the same distance. To solve the problem, we need to find the value of "k" first. We know that a 12-inch radius tire makes 100 revolutions to travel a certain distance. Substituting these values into the equation, we get:

100 = k/12

Solving for "k," we get k = 1200. Now we can use this value to find the number of revolutions required by a 16-inch radius tire to travel the same distance:

n = 1200/16 = 75

Therefore, a 16-inch radius tire would require 75 revolutions to travel the same distance as a 12-inch radius tire that made 100 revolutions.

In summary, we defined the variables, identified the constant of variation, wrote the equation (n=k/r), found the value of the constant by using the given information, and used it to solve the problem by finding the number of revolutions required by a tire with a different radius.

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The cost of a croissant before the increase was $0.75, the cost of a cup of coffee was $0.75, and the cost of a fruit bowl was $2.25.

Let's start by assigning variables to the cost of each item before the price increase. Let x be the cost of a croissant, y be the cost of a cup of coffee, and z be the cost of a fruit bowl.

From the problem statement, we know that:

x + y + z = 5.25 (total cost before price increase)

z = 3x (fruit bowl costs 3 times as much as a croissant)

Substituting z = 3x into the first equation, we get:

x + y + 3x = 5.25

4x + y = 5.25

Now we need to solve for x and y. We don't have an equation directly relating the price increase to the new prices, but we can use the percentage increase to write:

New croissant price = x + 0.15x = 1.15x

New coffee price = y + 0.4y = 1.4y

The new total cost will be:

1.15x + 1.4y + z

Substituting z = 3x, we get:

1.15x + 1.4y + 3x

Simplifying this expression and using the equation 4x + y = 5.25 to eliminate y, we get:

1.15x + 1.4y + 3x = 4.15x + 1.4(5.25 - 4x)

4.15x + 1.4(4x - 5.25) = 4.55x - 5.85

Therefore, the new total cost will be $4.55x - $5.85. To find the cost of each item before the increase, we can solve the system of equations:

4x + y = 5.25

z = 3x

Substituting z = 3x into the first equation, we get:

4x + y + 3x = 5.25

7x + y = 5.25

Solving for y in terms of x, we get:

y = 5.25 - 7x

Substituting this expression into the equation for the new total cost, we get:

4.55x - 5.85 = 1.15x + 1.4(5.25 - 4x) + 3x

Simplifying and solving for x, we get:

x = 0.75

Substituting this value of x into the equation for y, we get:

y = 5.25 - 7(0.75) = 0.75

Substituting x and z = 3x into the equation for the total cost before the increase, we get:

0.75 + 0.75 + 3(0.75) = 3.75

Therefore, the cost of a croissant before the increase was $0.75, the cost of a cup of coffee was $0.75, and the cost of a fruit bowl was $2.25.

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