The expected value for the amount of money made selling all of the candy in one bag is $15, and the standard deviation is approximately $24.33.
What exactly is a standard deviation?The standard deviation is a measurement of how widely apart a set of numbers or statistics are from their mean.
The expected value for the amount of money made selling all of the candy in one bag can be found by;
Expected value = mean number of candy bars per bag x price per candy bar
Expected value = 12 x $1.25 = $15
Formula for the standard deviation of a product of random variables:
[tex]SD (XY) = \sqrt{((SD(X)^2)(E(Y^2)) + (SD(Y)^2)(E(X^2)) + 2(Cov(X,Y))(E(X))(E(Y)))}[/tex]
where X and Y are random variables, SD is the standard deviation, and Cov is the covariance.
X is the number of candy bars in a bag, which has a mean of 12 and a standard deviation of 2. Y is the price per candy bar, which is a constant $1.25. So we have:
E(Y²) = $1.25² = $1.5625
E(X²) = (SD(X)²) + (E(X)²) = 2² + 12² = 148
Cov (X,Y) = 0 (because X and Y are independent)
Using these values, we can calculate the standard deviation for the amount of money made selling all of the candy in one bag:
[tex]SD = sqrt((2^{2} )(148) + (0)(12)(1.25)^{2} + 2(0)(2)(12)(1.25))[/tex]
SD = √(592)
SD ≈ $24.33
Therefore, the expected value for the amount of money made selling all of the candy in one bag is $15, and the standard deviation is approximately $24.33.
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Find the probability of numbers lying between 500 and 900 inclusive with exactly two consecutive figures are identical.
Answer:
To find the probability of numbers lying between 500 and 900 inclusive with exactly two consecutive figures that are identical, we can use the following steps: Step 1: Count the total number of three-digit numbers between 500 and 900 inclusive. There are 400 three-digit numbers between 500 and 900 inclusive. Step 2: Count the number of three-digit numbers between 500 and 900 that have exactly two consecutive figures that are identical. We can break this down into cases based on the middle digit of the three-digit number. Case 1: The middle digit is not 0 or 9. In this case, there are 8 possible digits that can be used for the middle digit (i.e., 1, 2, 3, 4, 5, 6, 7, or 8). For each possible middle digit, there are
f(x)=-x+ 2
g(x)=-4x²+x+5
Find (fog)(x)
Show work on how you found answer and then answer
The function (fog)(x) is 4x² - x - 3.
Define functionIn mathematics, a function is a rule that maps each element from a set (called the domain) to a unique element in another set (called the range or codomain).
In other words, a function is a mathematical object that takes one or more inputs, performs a specified operation on them, and produces an output. The input values of a function are called its arguments, and the output value is called the function value.
Starting with g(x):
g(x) = -4x² + x + 5
Now substituting g(x) into f(x):
f(g(x)) = -(g(x)) + 2
= -[-4x² + x + 5] + 2 (substituting g(x) into f(x))
= 4x² - x - 3
Therefore, (fog)(x) = 4x² - x - 3.
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If the equation of the normal to the curve f (X) at the point (2,-1) is X-2 y = 4 , then f (2) =
To find the value of f(2), we need to use the equation of the normal to the curve at the point (2,-1). We know that the normal to the curve is perpendicular to the tangent at that point.
From the given equation of the normal, we can determine the slope of the tangent line, which is -1/2.
Now we can use the point-slope form of a line to find the equation of the tangent line to the curve at (2,-1): y + 1 = (-1/2)(x - 2).
To solve for f(2), we need to find the y-coordinate of the point on the curve that lies on this tangent line. We can substitute x=2 into the equation of the tangent line to find the y-coordinate: y + 1 = (-1/2)(2 - 2) => y = -1.
Therefore, f(2) = -1.
One clay brick weighs 5.03 pounds. The brick is 1 inch long and 2 1/4 inches wide. If the clay weighs 0.07 pounds per cubic inch, what is the volume of the brick? Round your answer to the nearest integer.
The volume of the clay brick is 2.25 cubic inches and the weight of the clay brick is 0.1575 pounds
The volume of the clay brick, we need to use the dimensions provided. The length of the brick is 1 inch and the width is 2 [tex]\frac{1}{4}[/tex] inches. We can assume the height of the brick is also 1 inch since it is not specified.
The formula for the volume of a rectangular object is
V = lwh
where V is the volume, l is the length, w is the width, and h is the height.
Using the given dimensions, we can calculate the volume of the brick:
V = (1 inch) x (2 [tex]\frac{1}{4}[/tex] inches) x (1 inch)
V = (1 inch) x (2.25 inches) x (1 inch)
V = 2.25 cubic inches
V = 2.25 inches³
Since the density of the clay is given as 0.07 pounds per cubic inch, we can find the weight of the brick using the formula:
Weight = Volume x Density
Weight = 2.25 inches³ x 0.07 pounds/inches³
Weight = 0.1575 pounds
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Assuming that the confidence coefficient is 90%, then choose from the following concerning the z-value or t-value that would be used in the interval.
Thus, an interval with such a 90% confidence level has a z-score of 1.645.
Explain about the confidence interval/coefficient:An interval estimate of the mean is what the confidence limits for mean are. Since the estimation of the mean differs from sample to sample, interval estimates are frequently preferred.
A confidence interval produces a lower and upper limit for such mean rather than a single estimate of the mean. The interval estimate provides a clue as to the degree of uncertainty in our estimation of the true mean. Our estimate is more precise the narrower the interval.A confidence coefficient is used to express confidence boundaries. Although it is somewhat arbitrary to choose a confidence coefficient, 90%, 95%, and 99% intervals are frequently used in practise, with 95% being the most popular.From the positive z score table:
As 0.90 falls perfectly between the 1.64 and 1.65 z-scores, I shall calculate the z-score as 1.645.
Thus, an interval with such a 90% confidence level has a z-score of 1.645.
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Complete question:
Assuming that the confidence coefficient is 90%, then Find the the z-value that would be used in the interval.
You want to create a portfolio equally as risky as the market, and you have $1,000,000 to invest. Given this information, fill in the rest of the following table: (Do not round intermediate calculations and round your answers to the nearest whole number, e.g., 32.)
The portfolio should be invested as follows:
Stock A: $120,000 (12%)
Stock B: $220,000 (22%)
Stock C: $342,857 (34%)
Risk-free asset: $319,149 (32%)
What is statistics?
Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of numerical data.
To create a portfolio equally as risky as the market, we need to calculate the portfolio's beta, which is the weighted average of the betas of the individual assets in the portfolio.
The beta of the market is 1, so we need to find the weights of each asset in the portfolio that will result in a beta of 1.
Let wA, wB, and wC be the weights of stocks A, B, and C in the portfolio, respectively. Since we want the portfolio to be equally as risky as the market, we have the following equation:
wA * 1.00 + wB * 1.20 + wC * 1.40 = 1.00
We also know that the total investment is $1,000,000, so we have:
wA * $120,000 + wB * $220,000 + wC * X + (1 - wA - wB - wC) * Y = $1,000,000
where X is the investment in stock C, and Y is the investment in the risk-free asset.
We have two equations and two unknowns, so we can solve for wC and Y:
wC = (1.00 - wA * 1.00 - wB * 1.20) / 1.40
$1,000,000 = wA * $120,000 + wB * $220,000 + wC * X + (1 - wA - wB - wC) * Y
Substituting the first equation into the second equation, we get:
$1,000,000 = wA * $120,000 + wB * $220,000 + [(1.00 - wA * 1.00 - wB * 1.20) / 1.40] * X + [1 - wA - wB - (1.00 - wA * 1.00 - wB * 1.20) / 1.40] * Y
Simplifying and solving for Y, we get:
Y = $319,149
Substituting this value back into the second equation and solving for X, we get:
X = $342,857
Therefore, the portfolio should be invested as follows:
Stock A: $120,000 (12%)
Stock B: $220,000 (22%)
Stock C: $342,857 (34%)
Risk-free asset: $319,149 (32%)
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1. There are 40 apples packed into boxes. If there are 8 apples in each box, how many boxes are there?
Answer:
5 boxes
Step-by-step explanation:
We Know
There are 40 apples packed into boxes.
There are 8 apples in each box
How many boxes are there?
We take
40 / 8 = 5 boxes
So, there are 5 boxes.
Margo borrows $200, agreeing to pay it back with 8% annual interest after 16 months. How much interest will she pay?
Margo will pay $21.28 in interest for the loan. The formula I = Prt is used to calculate the interest for a loan.
What is interest rate?It is expressed as a percentage of the total amount borrowed and is typically noted as an annual percentage rate (APR).
The interest that Margo will pay can be calculated by using the formula I = Prt, where I is the interest, P is the principal (the initial amount borrowed), r is the interest rate, and t is the length of time.
In this case, the principal is $200, the interest rate is 8%, and the time is 16 months.
Therefore, the interest that Margo will pay is
I = 200 x 8% x (16/12)
= $21.28
Therefore, Margo will pay $21.28 in interest for the loan.
The formula I = Prt is used to calculate the interest for a loan.
Here, I is the interest, P is the principal (the initial amount borrowed), r is the interest rate, and t is the length of time.
This formula can be used to calculate interest for any loan, no matter the principal, interest rate, or length of time.
By simply substituting the values into the formula, the interest can be easily calculated.
Therefore, in this case, Margo will pay $21.28 in interest for the loan.
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In a recent year, 27.4% of all registered doctors were female. If there were 42,400 female registered doctors that year, what was the total number of registered doctors?
round answer to nearest whole number
the total number of doctors that were registered was about 154,744.
In a recent year, 27.4% of all registered doctors were female. If there were 42,400 female registered doctors that year,
Let's call the overall number of licensed physicians "x". We know that there were 42,400 female registered doctors in that year, making up 27.4% of all registered doctors.
To find x, we can construct the following equation:
0.274x = 42,400
x= 42,400 ÷0.274
x ≈ 154,744
Consequently, when rounded to the nearest whole number, the total number of doctors that were registered was about 154,744.
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For a fixed location, the number of sunlight hours in a day fluctuates throughout the year. Suppose that the number of daily sunlight hours in a particular location can be modeled by the following.
Using trigonometric equation, we can find that on January 25th, 218 days after June 21st, there will be 11 hours of sunlight.
Define trigonometric equation?The trigonometric equations can be linear, quadratic, or polynomial equations and are conceptually related to algebraic equations. Trigonometric equations substitute the Sin, Cos, and Tan trigonometric ratios for the variables found in a typical polynomial equation. Sinθ, Cosθ, or Tanθ are the trigonometric ratios that are employed in trigonometric equations.
The number of daily sunlight hours of a particular location is modelled by the trigonometric equation,
l(t) = 12 + 3.5sin (2/365t)
L(t) denotes the number of hours of sunlight in a day.
t is the number of days after June 21st.
In order to find the day during the first 365 where there are 11 hours of sunlight, we must know the value of "t" for which L(t) = 11 hours. The result of solving for t in the given equation with L(t)=10 is as follows:
l(t) = 12 + 3.5sin (2/365t)
11 = 12 + 3.5sin (2/365t)
11-12 = 3.5sin (2/365t)
-1 = 3.5sin (2/365t)
-1/3.5 = sin (2/365t)
-0.285 = sin (2/365t)
For the inverse function of y = sin x
sin ⁻¹(y) =x + 2n
Given that we must determine the day with 11 hours of sunlight in the first 365 days, we get the following results when we set n=0: t = -35.3521 or t =217.9422.
Now, t cannot be negative since we want to discover that the day after June 21st will have 10 hours of sunlight. therefore, ignoring t=-35.3521. We now have t=217.9422.
By rounding, we arrive at the necessary response, t=218.
So, it will have 11 sunlights on January 25th—218 days after June 21st.
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HELP ME PLEASEEE!!!!
A small business was founded by three friends whose capital shares are: Aries-$120, Gemini-$240, and Leo-$360.
Their profit for the week reached $540. The profit will be divided in proportion to their investment.
What percent of the capital shares was invested by Leo?
Helpppppppppppppppppp
Helpppppppppp
In the month of January, Sasha had a balance of 3200$ on her credit card. She made a payment of $300 and left the Remaining balance to be paid later. How much interest will she pay this month if her APR is 18.75% round to the nearest cent.
$46.19
$35.10
$4.50
$543.75
Answer:
543.75
Step-by-step explanation:
can somebody please do this with proof?
The quadrilateral ANDC is not cyclic because the four vertices of a quadrilateral ANDC do not lie on the circumference of the circle
Proving that ANDC is a cyclic quadrilateralA cyclic quadrilateral is a four-sided polygon where all four vertices of the quadrilateral lie on a common circle.
The circle is called the circumcircle, and it passes through all four vertices of the quadrilateral.
From the figure, we can see that only two vertices of ANDC lie on the circle
The other two are in the circle
Hence, the quadrilateral ANDC is not cyclic
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The assets and liabilities of a doctor are listed below.
Home Value $589,674
Mortgage $99,408
Credit Card Balance $8,057
Owned Work Equipment $51,797
Car Value $61,182
Investments $59,090
Personal Loan $76,348
What is the total value of the doctor's capital assets?
A) $51,797
B) $61,182
C) $589,674
D) $702,653
As a result, none of the suggested solutions are the correct one. The doctor's total capital assets $761,743.
What are assets?
Assets are resources that belong to a person or a business, have value, and can be utilized to make money. Cash, investments, real estate, equipment, and inventory are a few examples of assets.
Assets are split into two groups in accounting: current assets and non-current assets. In contrast to non-current assets, which cannot be turned into cash in a year or less, current assets can be changed into cash in a year or less.
The capital assets of the doctor are:
- $589,674 for the home
- Work equipment owned: $51,797
- Vehicle Cost: $61,182
$59,090 was invested.
The value of all the capital assets owned by the doctor is:
$589,674 + $51,797 + $61,182 + $59,090
value of all the capital assets = **$761,743
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PLEASE HELP ASAP ILL GIVE BRAINLY!!!
(a) Write the quadratic regression equation that models the data. Let x = time in seconds
and let y = height in feet. Round all numbers to the nearest hundredth. (b) Use the equation to estimate the height of rocket after Show your work. 3 seconds
(a) A quadratic equation is in the form: y = -12.87x² + 42.22x + 1.18
(b) The height of the rocket after 3 seconds would be 12.01 feet.
What is a quadratic equation?A quadratic equation is a polynomial equation with a maximum degree of two. Any equation that can be written in the standard form where x is an unknown value, a, b, and c are known quantities, and a 0 is a quadratic equation.
Here, we have
Given: A rocket is launched upwards from the ground.
(a) A quadratic equation is in the form:
y = -12.87x² + 42.22x + 1.18
(b) When x = 3 seconds
y = -12.87(3)² + 42.22(3) + 1.18
y = 12.01 feet
Hence, the height of the rocket after 3 seconds is 12.01 feet.
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Does this table graph identify a linear, quadratic, or an Exponential function
X: -3, -2, -1, 0, 1
Y: 2, 8, 2, 1/2, 1/8
The table graph X: -3, -2, -1, 0, 1; Y: 2, 8, 2, 1/2, 1/8 identify an exponential function.
To determine if the function represented by this table is linear, quadratic, or exponential, we can look for a pattern in the ratios of consecutive y-values to consecutive x-values.
Ratio of (8-2)/(-2-(-3)) = 6/1 = 6Ratio of (2-8)/(-1-(-2)) = -6/1 = -6Ratio of (1/2-2)/(0-(-1)) = -3/2 = -1.5Ratio of (1/8-1/2)/(1-0) = -3/8The ratios of the consecutive y-values to consecutive x-values do not remain constant, indicating that the function is neither linear nor quadratic.Furthermore, the ratios decrease or increase depending on the direction of the movement, suggesting that the function is an exponential function.
Hence, we can conclude that the function represented by this table is an exponential function.
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{2, 4, 4, 6, 9}
mean = 5
You add one number to this set.
Which number would change the mean the most?
O 20
O 1
O 5
Answer:
O 20
Step-by-step explanation:
when you add 1 and 5 the mean only changes by a little.
but, once you add the 20 it makes your answer go up drastically which makes
O 20
your correct answer.
I poll is given showing 60% are in favor of a new building project if 10 people or chosen at random what is the probability that exactly 7 of them favor the new building project?
The probability that exactly 7 out of 10 people chosen at random favor the new building project is approximately 0.2010 or 20.10%.
To calculate the probability that exactly 7 out of 10 people chosen at random favor the new building project, we need to use the binomial probability formula, which is:
P(X = k) = [tex](n choose k) * p^k * (1-p)^(n-k)[/tex]
where:
n = 10 (the number of trials)
k = 7 (the number of successes we want to find)
p = 0.6 (the probability of success)
Using this formula, we can calculate the probability as:
P(X = 7) = (10 choose 7) * [tex]0.6^7 * (1-0.6)^(10-7)[/tex]
P(X = 7) = (10!/7!3!) * [tex]0.6^7 * 0.4^3[/tex]
P(X = 7) = 120 * 0.0279936 * 0.064
P(X = 7) = 0.2010 (rounded to four decimal places)
Therefore, around 0.2010 or 20.10% of people like the new building project, which is the probability that exactly 7 out of 10 randomly selected individuals will do so.
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(9, 23) is a point on the graph y = f(x)
Which point must be on the graph of y = f(x) + 4 ?
A (9, 19) B (13, 23) C (5, 23)
D (9, 27)
Answer:Option (d)
Step-by-step explanation: D (9, 27)
i need help with this question
Answer:(2I3O-9247)
Step-by-step explanation:
A proportion often shows the relationship between:
Answer: two related quantities by comparing their ratios and establishing equivalence.
Step-by-step explanation: A proportion is a mathematical statement that equates two ratios. It is commonly used to express the relationship between two related quantities or sets of data. A proportion consists of four values: two ratios, where each ratio is made up of a numerator and a denominator.
Proportions are useful for comparing and understanding the relationship between different quantities. They can be used to solve various real-life problems, such as determining equivalent values, finding unknown quantities, or making predictions based on known information.
For example, if a recipe calls for 2 cups of flour and 1 cup of water, the proportion would be 2:1. This proportion shows the relationship between the amount of flour and water needed in the recipe.
In a proportion, the ratios are equivalent, meaning they have the same value. This equality allows us to solve for unknown quantities by cross-multiplying and finding the missing value.
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Which function is represented by the graph?
The function which is represented by graph is y= √(-x-2) + 1. So correct option is C.
Describe Function?In mathematics, a function is a relation between two sets of objects in which each element of the first set (called the domain) is associated with exactly one element of the second set (called the range). The domain and range can be any sets, but they are usually subsets of the real numbers.
A function is typically denoted by a name, such as f(x), and is defined by an equation or a rule that specifies how the function operates on its inputs. The inputs to the function are typically denoted by x, and the outputs are denoted by f(x).
Functions can be represented graphically as well. The graph of a function is a visual representation of the relation between the input and output values. It is a plot of the input values on the x-axis and the output values on the y-axis.
Functions can be classified in various ways, such as linear, quadratic, exponential, trigonometric, etc. The behavior of a function can also be analyzed by looking at its domain and range, its symmetry, its intercepts, and its slope.
The function which is represented by graph is y= √(-x-2) + 1. So correct option is C.
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Solve the systems by substitution.
y = -x - 32
y = 5x
We can solve this system of equations by substitution. Since both equations are solved for y, we can set them equal to each other and solve for x.
y = -x - 32 ...(1)
y = 5x ...........(2)
Substituting (1) into (2), we get:
-x - 32 = 5x
Simplifying and solving for x, we have:
6x = -32
x = -32/6
x = -16/3
Now that we know x, we can substitute it back into either equation to solve for y. Let's use equation (2):
y = 5x
y = 5(-16/3)
y = -80/3
Therefore, the solution to the system of equations is (x, y) = (-16/3, -80/3).
What was the age distribution of prehistoric Native Americans? Suppose an extensive anthropological studies in the southwestern United States gave the following information about a prehistoric extended family group of 84 members on what is now a Native American reservation.
Age range (years) 1-10 11-20 21-30 31 and over
Number of individuals 35 22 20 7
For this community, estimate the mean age expressed in years, the sample variance, and the sample standard deviation. For the class 31 and over, use 35.5 as the class midpoint. (Round your answers to one decimal place.)
x =
years
s2 =
s =
years
The estimated mean age, sample variance, and sample standard deviation for a prehistoric extended family group of 84 members in the southwestern United States are 14.5 years, 83.5 square years, and 9.1 years, respectively.
To estimate the mean age, we need to calculate the weighted average of each age group's midpoint using their respective frequencies.
The midpoint of the first class (1-10 years) is 5.5, the midpoint of the second class (11-20 years) is 15.5, the midpoint of the third class (21-30 years) is 25.5, and the midpoint of the fourth class (31 and over) is 35.5.
To calculate the weighted average, we multiply each midpoint by its respective frequency, sum these products, and divide by the total number of individuals:
x = [tex]\frac{5.5 x 35 + 15.5 x 22 + 25.5 x 20 + 35.5 x 7}{84}[/tex] = 14.5 years
Therefore, the estimated mean age for this community is 14.5 years.
To calculate the sample variance and sample standard deviation, we first need to calculate the deviation of each observation from the mean. Then, we square each deviation, sum these squared deviations, and divide by n - 1 to get the sample variance.
Using the formula:
s2 = [tex]\frac{\sum_{i=1}^{n}(x_i - \bar{x})^2}{n-1}[/tex]
sample variance as follows:
s2 = [tex]\frac{[(1-10-14.5)^2 \times 35 + (11-20-14.5)^2 \times 22 + (21-30-14.5)^2 \times 20 + (35.5-14.5)^2 \times 7]}{83}[/tex] = 83.5
Therefore, the estimated sample variance for this community is 83.5 square years.
Using the formula:
s = [tex]\sqrt{s2}[/tex]
The sample standard deviation can be calculated as follows:
s = [tex]\sqrt{83.5}[/tex] = 9.1 years
Therefore, the estimated sample standard deviation for this community is 9.1 years.
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a friend has a 84% average before the final exam for a course. That score includes everything but the final, which counts for 30% of the course grade. What is the best course grade your friend can earn?
Answer:
To determine the best course grade your friend can earn, we need to know how much the final exam is worth. Since the final counts for 30% of the course grade, the remaining 70% must be from the other work completed so far. Let's assume that there's only one final exam and that it's graded out of 100 points. If your friend's current average is 84%, then they have earned 84 points out of every 100 possible points so far. To find the best course grade your friend can earn, we can set up the following equation: 0.7(84) + 0.3(F) = G where F is the score your friend earns on the final exam, and G is the overall course grade. We can solve for G by plugging in F and simplifying the equation: 0.7(
the ratio of pickups to cars sold at a dealership is 2 to 3. If the dealership sold 142 more cars than pickups in 1999, then how many of each did it sell
The number of pickups is 284.
and the number of cars is 142 more than that = 426.
What is arithmetic?
Arithmetic is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers—addition, subtraction, multiplication, division, exponentiation, and extraction of roots.
Here, we have
Given: The ratio of pickups to cars sold at a dealership is 2 to 3. If the dealership sold 142 more cars than pickups in 1999
Let y = the number of cars.
x/y = 2/3.
The dealership sold 142 more cars than pickups.
We get y = x + 142
In the equation of x/y = 2/3, replace y with x + 142 to get:
x/(x+142) = 2/3
cross multiply to get:
3x = 2*(x+142)
simplify to get:
3x = 2x + 284
subtract 2x from both sides of the equation to get:
x = 284.
Hence, the number of pickups is 284.
and the number of cars is 142 more than that = 426.
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The equation d = m/v can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an
equivalent equation solved for V?
Odm = V
Od/m = V
Om/d = V
Om-d=V
Therefore, an equivalent equation solved for V is:
V = m/d.
None of the options given in the question are equivalent to this equation.
What do you mean by the volume?In general, "volume" refers to the amount of space occupied by a three-dimensional object or substance. It can also refer to the amount or quantity of something, such as the volume of water in a swimming pool, the volume of air in a room, or the volume of a book.
In the context of mathematics, the term "volume" is often used to refer specifically to the measure of the amount of space enclosed by a solid object, typically measured in cubic units such as cubic meters (m³) or cubic feet (ft³). For example, the volume of a cube with sides of length 1 meter would be 1 cubic meter (1 m³).
To solve for V in terms of the given equation, we need to isolate V on one side of the equation.
Starting with d = m/V, we can rearrange the terms as follows:
[tex]d = m/V[/tex]
Multiplying both sides by V, we get:
[tex]dV = m[/tex]
Dividing both sides by d, we get:
[tex]V = m/d[/tex]
Therefore, an equivalent equation solved for V is:
[tex]V = m/d.[/tex]
None of the options given in the question are equivalent to this equation.
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4x + 14 + 4x = 38+77-1
Answer:
x=25/2 or 12.5
Step-by-step explanation:
8x=115-15
8x=100
x=100/8
x=25/2 or 12.5
Answer:
x = 12.5
Step-by-step explanation:
4x + 14 + 4x = 38+77 - 1
8x + 14 = 38 + 77 - 1
8x + 14 = 114
8x = 100
x = 12.5