Rita works 12 3/4 hours in her first week at a new job. she works 15 1/4 hours in the second week. how many more hours does Rita work the second week?

For the equation 7/8 - 6/11, the best estimation is obtained as (1) - (1/2) = 1/2

To estimate 7/8 - 6/11, we need to find a common denominator for the two fractions.

One way to do this is to multiply the numerator and denominator of each fraction by the denominator of the other fraction.

So, we have -

(7/8) x (11/11) - (6/11) x (8/8)

= 77/88 - 48/88

= (77 - 48)/88

= 29/88

To simplify this fraction, we can look for common factors in the numerator and denominator.

The fraction 7/8 is almost 1 and the fraction 6/11 is almost 1/2.

Therefore, the best estimation of the equation 7/8 − 6/11 is -

(1) - (1/2) = 1/2

Therefore, the equation is obtained as (1) - (1/2) = 1/2.

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The quadratic function represented by the table is f(x) = -x² + 4x -1.

A polynomial of degree two in one or more variables is referred to as a quadratic polynomial. The polynomial function that a quadratic polynomial defines is known as a quadratic function.

Here, we have

Given: we have three variables a, b, and c, we can solve this problem by taking three points, say:

(0,-1), (2,3), and (4,-1)

Since we know that the function of the table is a quadratic function, we can start writing this function as follows:

f(x) = ax² + bx + c

So these points must satisfy the equation of the function.

For, (0,-1)

-1 = a(0)² + b(0) + c

c = -1

For, (2,3)

3 = a(2)² + b(2) + c

3 = 4a + 2b -1

4 = 4a + 2b

2 = 2a + b....(1)

For,  (4,-1)

-1 = a(4)² + b(4) + c

-1 = 16a + 4b - 1

4a + b = 0...(2)

Now, we have two equations to solve for a and b:

a = -1

b = 4

Now we put the value of a, b, and c in the given equation and we get

f(x) =  (-1)x² + 4x + (-1)

f(x) = -x² + 4x -1

Hence, the quadratic function represented by the table is f(x) = -x² + 4x -1.

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[tex]x + (x+1) + (x+2) + (x+3) = -326\\[/tex]

[tex]4x + 6 = -326[/tex]

[tex]4x = - 326-6[/tex]

[tex]4x = -332[/tex]

[tex]x = -332/4 \implies x = - 83[/tex]

the integers are:

[tex]-83 < -82 < -81 < -80[/tex]

the largest integer is: -80

Pοints (1, 9) and (10, 1) wοuld be a line οf fit.

A scatter plοt is a graph that displays values fοr twο variables as οrdered pairs οf data pοints, with οne variable οn the hοrizοntal axis (x-axis) and the οther variable οn the vertical axis (y-axis).

Tο determine which twο pοints a line οf fit wοuld gο thrοugh tο best fit the data in a scatter plοt, we need tο lοοk fοr the pοints that are clοsest tο the general trend οr directiοn οf the pοints. In this scatter plοt, it appears that the general trend is a dοwnward slοping line.

The twο pοints that wοuld best fit this trend are (1, 9) and (10, 1), which are lοcated at the twο ends οf the scatter plοt and appear tο be the farthest frοm the general trend. Therefοre, the answer is:

(1, 9) and (10, 1)

Hence, pοints (1, 9) and (10, 1) wοuld be a line οf fit.

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Answer:

Step-by-step explanation:

yes this relationship is pporportianal

The pair of lines 12x + 4y = 9 and 12x = 36y + 48 are perpendicular.

From the question, we are to determine whether the pair of lines are parallel, perpendicular or neither

To determine whether the pair of lines are parallel, perpendicular, or neither, we need to compare their slopes.

We can rewrite both equations in slope-intercept form, y = mx + b,

Where m is the slope of the line:

12x + 4y = 9

4y = -12x + 9

y = (-3/1)x + 9/4

12x = 36y + 48

12x - 48 = 36y

(1/3)x - 4/3 = y

The slope of the first line is -3/1, and the slope of the second line is 1/3.

Parallel lines have the same slope, so these lines are not parallel.

Perpendicular lines have slopes that are negative reciprocals of each other, meaning their slopes multiply to -1. Therefore, these lines are perpendicular.

Hence, the given pair of lines are perpendicular.

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The surface area of the larger prism is 24b + (5/2)(bc + bd + cd) + 5/2.

Surface area is the sum of the areas of all the faces (or surfaces) of a three-dimensional object. It is a measure of how much area the surfaces of an object take up in two dimensions. The surface area of a solid can be found by adding up the areas of its faces.

Let's call the other dimensions of the blocks "a", "b", "c", and "d", with "a" and "c" being the lengths, and "b" and "d" being the widths. Then, we have:

Block 1: a x b x c = 15

Block 2: a x b x d = 15

When we join the blocks together, we get a larger rectangular prism with dimensions 12 x b x (c + d). The surface area of this prism can be found by adding up the areas of its six faces:

Surface area = 2(12b) + 2(bc + bd + cd)

Surface area = 24b + 2(15 + bc + bd + cd)/12

Surface area = 24b + (5/2)(bc + bd + cd) + 5/2

Therefore, the surface area of the larger rectangular prism is given by:

Surface area = 24b + (5/2)(bc + bd + cd) + 5/2

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Note:  This question is incomplete so i have given generalized answer

For two similar rectangle value of x is,

⇒ x = 4.2 cm

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

There’s two rectangular that are similar and one is 6cm and 2.8 cm.

Now, By using definition of proportion;

The proportion of there corresponding sides are equal.

Hence, We get;

⇒ 6/2.8 = 9/x

Solve for x;

⇒ x = 9 × 2.8 / 6

⇒ x = 4.2 cm

Therefore, For two similar rectangle value of x is,

⇒ x = 4.2 cm

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The value of x for the given cone will be 4. The correct option is C.

The area a cone takes up in a three-dimensional plane is known as its volume. A cone's base is circular, so it is made of a radius and a diameter.

Given that the volume of the cone is V = 128π and the height of the cone is h = 24 units.

The value of the radius x will be calculated as,

V = ( 1 / 3 )πr²h

128π = ( 1 / 3) π x r² x 24

r² = 16

r = 4 units

Therefore, the value of x will be 4 units.

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Thus, the separation between the two locations is roughly 9.1 units, rounded to the closest 10.

Considering that the hypotenuse is the side that faces the right angle, any right triangle has a works great to the sum of the surfaces of the squares that actually make up its two legs.

According to the Pythagorean Theorem, the square of the hypotenuse, the longest side of a right triangle, is equivalent to the total of the cubes of the other two sides. This theory can be used to determine the separation between the two coordinates (0, -4) and (1, 5), as shown below:

The two locations are separated horizontally by one unit.

The vertical distance between the two points is 5 - (-4) = 9 units.

distance = √((1)² + (9)²)

distance = √(82)

distance ≈ 9.06

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The value of the k is 5

The slope of a line is a measure of its steepness or inclination. It tells us how much the line rises or falls as we move horizontally along it.

Parallel lines will have the same slope. That means if two lines are parallel, they have the same steepness or inclination.

Here we have

Equation of the line is y = 3x --- (1)

Equation(1) is in the form y = mx + x

The slope of the line (1) = 3

Let y = m₁x + c is the line that is parallel to line (1)  

Since the slope of the parallel lines are equal

=> y = 3x + c --- (2)

Given that the line passes through (7, 1)

=> 1 = 3(7) + c

=> c = - 21 + 1

=> c = - 20  

Hence, the equation of the line is y = 3x - 20 --- (3)

It is given that the line will also pass through the point (k, 7)

=> 7 = 3k - 20

=> 3k = 27    

=> k = 9

Therefore,

The value of the k is 9

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480 m³ is the volume of the given solid.

What is Volume?

The space that any three-dimensional solid occupies is known as its volume. These solids can take the form of a cube, cuboid, cone, cylinder, or sphere.

The dimensions of the trapezoidal prism are given in the diagram.

The dimensions of the cuboidal cavity are also given.

Volume of the solid = Volume of trapezoidal prism - Volume of cuboidal cavity

Volume of trapezoidal prism = (1/2)[Sum of parallel sides][h]×length

= (1/2)×[13+8]×[5]×10

= 525 m³

Volume of cuboidal cavity = l×b×h

= 10×3×1.5

= 45 m³

Volume of the solid = 525 - 45 m³

= 480 m³

The volume of the solid is 480 m³.

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The new total after the 13% discount has been applied to a bill of £39 is £33.93.

percentage, a relative value indicating hundredth parts of any quantity.

To calculate the new total after the discount, we need to first find the amount of discount applied to the original bill.

We can do this by multiplying the original bill by the discount rate (as a decimal):

Discount = 0.13 * £39 = £5.07

Therefore, the amount of the discount is £5.07.

To find the new total, we need to subtract the discount from the original bill:

New total = £39 - £5.07 = £33.93

Therefore, the new total after the 13% discount has been applied to a bill of £39 is £33.93.

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Answer:

x = 13

Step-by-step explanation:

We know that 5x, x+12, and 90 makes a straight line, which is 180 degrees

5x + x+12 + 90 = 180

Combine like terms.

6x+102=180

Subtract 102 from each side.

6x+102-102=180-102

6x = 78

Divide each side by 6

6x/6 = 78/6

x = 13

Answer:

x = 13

Step-by-step explanation:

Now we have to,

→ Find the required value of x.

We know that,

→ The angle of right angle is 90°.

Forming the equation,

→ (x + 12)° + (5x)° = 90°

Then the value of x will be,

→ (x + 12)° + (5x)° = 90°

→ x + 12 + 5x = 90

→ (x + 5x) + 12 = 90

→ 6x + 12 = 90

→ 6x = 90 - 12

→ 6x = 78

→ x = 78 ÷ 6

→ [ x = 13 ]

Hence, the value of x is 13.

Answer:

Believe it's just a

Step-by-step explanation:

Because

The product of 6 √12 and 2√14 in simplest radical form is 24 √42 .

Radical - The √ symbol that is used to denote square root or nth roots. Radical Expression - A radical expression is an expression containing a square root.

We have to find the product of 6 √12 and 2√14 in simplest radical form.

So,   6 √12 x  2√14

= 12 x √12 x √14

= 12 x 2√3 x √14

= 24 x √3 x √14

= 24 √42

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Answer:

5

Step-by-step explanation:

The degree of a polynomial is the highest degree of its terms.

Identify the term with the largest exponent on the variable

Identify the degree of each terms

The degree of 8t5 is 5

The degree of 5t4 is 4

Degree of polynomial = 5

The single equivalent discount rate for Company A is 19.28%, and for Company B is 23.18%.

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

[tex]\dfrac{a}{100} \times b[/tex]

We are given;

The measures of company A and B= 8/10/14/4 10/6/16/3

Now,

To calculate the single equivalent discount rate for each company, we can use the following formula:

Single equivalent discount rate = [(1 - (Discount % / 100)) ^ (365 / Average payment period) - 1] x 100

For Company A, the average payment period is:

(8 + 10 + 14 + 4) / 4 = 9

Using the formula, we can calculate the single equivalent discount rate for Company A:

Single equivalent discount rate = [(1 - (8/100)) ^ (365 / 9) - 1] x 100 = 19.28%

For Company B, the average payment period is:

(10 + 6 + 16 + 3) / 4 = 8.75

Using the formula, we can calculate the single equivalent discount rate for Company B:

Single equivalent discount rate = [(1 - (10/100)) ^ (365 / 8.75) - 1] x 100 = 23.18%

Therefore, by percentage the answer will be 19.28% and 23.18%.

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The number that Drew wrote is 790,800.

Number is a mathematical object used to count, measure, and label. It is an abstract concept that can be represented with symbols, such as numerals, and words, such as "three" or "three hundred." Numbers can be used to represent quantities, distances, sizes, and other measurements. In mathematics, number theory is the study of the properties of numbers, such as addition, subtraction, multiplication, and division. Number theory is also used in other sciences, such as physics and computer science.

This is determined by taking the value of each digit and multiplying it by the exponential value that Drew described. The first digit has a value of 7 x 100,000, the second digit has a value of 9 x 100, and the third digit has a value of 8 x 0.01. Therefore, the number is 790,800.

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The formula for calculating the circumference of a circle (the distance around the circle) is:

C = πd, Where C denotes circumference, d denotes diameter and is a mathematical constant equal to 3.14.

Because the diameter of the bicycle wheel, in this case, is 20 inches, the circumference is:

C = d = 20 inches equals 62.8 inches

Darian covers the following distance per second at 3.5 revolutions per second:

62.8 inches = 220.4 inches distance = 3.5 C = 3.5

To convert this to miles per hour, we need to convert inches per second to miles per hour. Because there are 60 seconds in a minute and 60 minutes in an hour, the following are possible:

An hour has 60 X 60 = 3600 seconds.

There are also 12 inches in a foot and 5280 feet in a mile, so there are:

12 × 5280 = 63360 inches in a mile

Therefore, to convert inches per second to miles per hour, we can use the following conversion factor:

1 inch per second = (3600/63360) miles per hour

Multiplying both sides by the distance in inches per second gives:

distance in miles per hour = (distance in inches per second) × (3600/63360)

Plugging in the values we have calculated, we get:

distance in miles per hour = 220.4 inches per second × (3600/63360)

distance in miles per hour = 12.6 miles per hour (approximately)

Therefore, the approximate linear speed of Darian's bicycle tire is 12.6 miles per hour.

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Answer:

Elizabeth

Step-by-step explanation:

Her answer shows the ratio of 6:24- lemonade to punch.

Noah missed 7 points on the test. And Gabe missed 2x - 3 = 2(7) - 3 = 11 points on the test. So, Gabe missed 11 points on the test.

What is Algebraic expression ?

Algebraic expression can be defined as combination of variables and constants.

Let x be the number of points that Noah missed on the test.

Then, the number of points that Gabe missed is 2x - 3, according to the problem.

The total number of points missed by both of them is given as 18.

So, we can write an equation based on the problem statement:

x + (2x - 3) = 18

Simplifying the equation, we get:

3x - 3 = 18

Adding 3 to both sides of the equation, we get:

3x = 21

Dividing both sides of the equation by 3, we get:

x = 7

Therefore, Noah missed 7 points on the test. And Gabe missed 2x - 3 = 2(7) - 3 = 11 points on the test. So, Gabe missed 11 points on the test.

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Answer:

Julius: 52

John: 47

Grace: 51

Step-by-step explanation:

Let marks scored by Julius, John and Grace be x, y and z respectively

From the information given,
"Julius scored 5 more marks " →   x = y + 5  (1)

"who in turn scored 4 marks less than Grace" →  y = z - 4  (2)

Substitute y =  z - 4 in equation x = y + 5

→  x = (z-4) + 5

→ x = z - 4 + 5

→ x = z + 1

"The total mark scored by the three students was 150":
x + y + z = 150      (3)

Substitute x = z - 1 and y = z - 4 in equation (3):

←  (z + 1) + (z - 4) + z = 150
→  z -+ 1 + z - 4 + z = 150

→  z + z + z +  1 -  4 = 150
→  3z - 3 = 150

→  3z = 150 + 3 = 153

→ z = 153/3 = 51
So Grace's mark was 51

John's mark y = z - 4 = 51 - 4 = 47

Julius' mark x = y + 5 = 47 + 5 = 52

Substitute for y from (2) in (4):
2(z - 4) + z = 145

2z - 8 = 145

Answer:

Below

Step-by-step explanation:

Area = w X l     =   1/2  yd  X  7/6  yd   =   (1*7) / (2*6) =   7/12 yd^2

Answer:

7/12 sq yd

Step-by-step explanation:

The area of a rectangle (which includes a rug) is given by the formula:

Area = Length x Width

We are given that the rug is 1/2 yard wide and 7/6 yards long. So, we can substitute these values into the formula:

Area = (7/6) x (1/2)

To multiply these fractions, we need to find a common denominator. The least common multiple of 6 and 2 is 6, so we can convert both fractions to have a denominator of 6:

Area = (7/6) x (1/2) = (7/6) x (3/3) x (1/2) = 21/36

We can simplify this fraction by dividing the numerator and denominator by their greatest common factor, which is 3:

Area = 21/36 = (21 ÷ 3) / (36 ÷ 3) = 7/12

Therefore, the area of the rug is 7/12 square yards.

Where the graphs intersect or touch, the supplied statement is true, and that is the solution to any system.

One or two variables make up a linear equation. Neither the numerator nor the denominator of a fraction can be a variable in a linear equation raised to a power higher than 1. The lines that connect all the points on a coordinate grid when you identify the values that make a linear equation true are congruent.

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation. The above is sometimes referred to as "linear equation of two variables," where y and x are the variables.

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The total cost for the customer for the entire year is  $48,600.

The customer wants to purchase 20 subscriptions for each of their 20 employees, so they need a total of 20 x 20 = 400 subscriptions.

Each subscription costs $10 per month for a yearly commitment,

so the cost for one subscription for a year would be $10 x 12 = $120.

Therefore, the total cost for 400 subscriptions for a year would be $120 x 400 = $48,000.

In addition, they need 1 extra subscription for a different service for every two employees, so they need 20 / 2 = 10 extra subscriptions.

Each extra subscription costs $5 per month for a yearly commitment, so the cost for one extra subscription for a year would be $5 x 12 = $60.

Therefore, the total cost for 10 extra subscriptions for a year would be $60 x 10 = $600.

Adding the cost of the extra subscriptions to the cost of the regular subscriptions, the total cost for the customer for the entire year would be $48,000 + $600 = $48,600.

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Step-by-step explanation:

1 blue square on drawing is length 1/4 in but that means 4ft in reality.

so one blue square area correspongs to 4x4 = 16 square feet.

(a) there 6 tiles for the batrhroom = 6x16 sq.ft = 96 sq.ft and the cost will be $480

(b) bedroom + living area = 7x8-8 tiles = 48 tiles = 48 x 16 sq.ft. = 768 sq.ft = 85.33 sq. yards. So the cost will be 85.33*18=$1535.94

(c) unit cost for tile: $5/sq.ft

unit cost for carpet: $1535.94/768sq.ft = $2/sq.ft

The tile has a greater unit cost ($5 per sq.ft) than carpet ($2 per sq.ft)

Tiling the bathroom would cost $25. The price of five squares of tile, or the cost of tiling the bathroom, is: $5 x 5 squares is $25.

a. To calculate the cost of tiling the bathroom, we must first calculate its square footage. Assume the restroom measures 8 feet by 10 feet. We now have the area of:

960 square inches are equal to 8 feet by 12 inches per foot and 10 feet by 12 inches per foot.

The area of the bathroom can be divided by the area of each square, which is 14 inches on the blueprint, to determine the number of squares required:

14 inches by 14 inches divided by 960 square inches equals 4.96 squares.

As we are unable to purchase a fractional quantity of tile, we will round up to 5 squares.

The price of five squares of tile, or the cost of tiling the bathroom, is:

$5 x 5 squares is $25.

Consequently, tiling the bathroom would cost $25.

b. To calculate the cost of carpeting the bedroom and living room, we must first calculate the square footage of each space. Assume that the living room is 18 feet by 20 feet and the bedroom is 12 feet by 14 feet in size. These areas include:

Bedroom: 168 square feet (12 feet by 14 feet).

The living room is 360 square feet (18 feet by 20 feet).

Divide by 9 to convert square feet to square yards:

Bedroom 168 sq ft / 9 sq ft = 18.67 sq ft

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The correct answer is option D maximum occurs at the function's y-intercept.

A quadratic function's graph is a parabola, which, depending on the sign of the coefficient a, might expand upward or downward. A quadratic function's primary traits are:

The greatest or minimum point of the function is at the parabola's vertex.

The vertex serves as the point on the vertical axis of symmetry.

The function's value at x = 0 is known as the y-intercept.

The x-intercepts of the parabola, which appear where the function equals 0, are the roots or zeros of the function.

We must examine the layout of the quadratic function g's graph, which is depicted in the table, in order to ascertain its properties. The chart shows that the parabola's vertex, or maximum/minimum point, is at:

x = -2, where g(-2) = -16.

The y-intercept also happens to be at g(0) = 4.

Hence, the correct answer is option D maximum occurs at the function's y-intercept.

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Answer: 1015

Step-by-step explanation: We will find the factors of all the given numbers by using the prime factorization method. Then we will multiply the factors with the highest degree to find the least common multiple of the given numbers.