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3 years ago

10

Marissa earns $24 for 4 hours of babysitting chole earns $41.25 for 5 1/2 hours of babysitting who earns more per hour how much

more?

1 answer:

goblinko [34]3 years ago

4 0

Chloe is earning 7.50 an hour, Marissa is earning $6 an hour so the answer is Chloe is earning 50 cents more per hour.

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In a litter, 2 out of 8 kittens are male. What percent of the kittens are female? * 2 points 28% 75% 82%

vladimir2022 [97]

The answer would be 28%

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3 years ago

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If the measure of arc tu is 25 degrees what is the degree measure of arc UV

timofeeve [1]

The answer is 15 i think i don't know

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3 years ago

An open box is to be made out of a 12-inch by 20-inch piece of cardboard by cutting out squares of equal size from the four corn

Natali5045456 [20]

Answer:

Length = 15.14, width = 7.14 and height = 2.43 inches.

( correct to the nearest hundredth).

Step-by-step explanation:

Let the lengths of the squares cut out be x inches.

Then the width of the box will be 12 - 2x and the length will be

20 - 2x inches.

The height of the box is x inches.

Volume V = x(20-2x)(12-2x)

To find the value of x when V is a maximum we find the derivative and equate it to zero.

V = x( 240 - 64x + 4x^2)

V = 4x^3 - 64x^2 + 240x

dV/dx = 12x^2 - 128x + 240 = 0

4(3x^2 - 32x + 60) = 0

This won't factor so we use the formula:

x = [-(-32) +/- √((-32)^2 - 4*3*60)] / 6

= 8.24, 2.43.

So one of these gives a maximum Volume.

The second derivative

d^2V/dx^2 = 24x - 128

When x = 8.24, this = 69.6 (positive) so this gives a minimum.

x = 2.43 gives a negative value ( -49.7) so this is the maximum

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width = 12 - 2(2.43) = 7.14

height = 2.43.

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2 years ago

Last year, Mollie collected 64 pieces of candy while trick or treating. This year her costume is so fabulous that people were ex

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Answer:

79.6875 % If you can round, please do.

Step-by-step explanation:

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3 years ago

A company policy requires that for every 30 employees, there must be 3 supervisors. If there are 267 supervisors at the company,

Alexus [3.1K]

267 supervisors will have 2670 employees.

Step-by-step explanation:

Let x be the number of employees.

Given,

3 supervisors = 30 employees

1 supervisor = $\frac{30}{3}$

1 supervisor = 10 employees

As one supervisor has 10 employees, 267 supervisors will have;

x = 267*10

x= 2670 employees

267 supervisors will have 2670 employees.

Keywords: Multiplication.

Learn more about multiplication at:

#LearnwithBrainly

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3 years ago