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2 years ago

David earned a total of $378.75 in 15 hours. How much did David earn per hour? NO GUESSES NO LINKS NO BOTS

Mathematics

2 answers:

Serga [27]2 years ago

6 0

Answer:

$25.25

Step-by-step explanation:

All you have to do is divide 378.75 by 15 and you get your answer, because we want to make 15 hours turn to 1 so divide both numbers by 15 to get 25.25

enot [183]2 years ago

3 0

Answer: $25.25

Step-by-step explanation:

378.75/15 = 25.25

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Calvin work as an air conditioning contractor the customer wants to buy an air condition for his family room his room measure 30

Verdich [7]

ANSWER

$3840 {ft}^{3}$

EXPLANATION

The room represents a rectangular prism or a cuboid.

The dimensions of the room are 30 feet by 16 feet by 8 feet(height).

The volume of a rectangular prism is

$= base \: area \: \times \: height$

Substitute the given values

$= 30 \times 16 \times 8 {ft}^{3}$

Simplify:

$= 3840 {ft}^{3}$

Hence the cubic feet of air in the room is 3,840ft³.

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3 years ago

maksim [4K]

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Polygon X is similar to polygon.

And Polygon X is three times the size of polygon Y.

So, it becomes,

$\dfrac{\text{Perimeter of polygon X}}{\text{Perimeter of polygon Y}}=\dfrac{3}{1}\\\\\dfrac{81}{x}=\dfrac{3}{1}\\\\x=\dfrac{81}{3}\\\\x=27$

Hence, perimeter of polygon Y is 27.

Therefore, Option 'C' is correct.

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3 years ago

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Use long division to convert -45/8 to a decimal.

Olenka [21]

The answer is A. -5.625

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4 years ago

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A family spent $65 on dinner and left a 20% tip. What was the total cost of their meal?

Oxana [17]

Answer: B, $78

Step-by-step explanation:

If the tip is 20% of the dinner cost, then we have to first find what is 20% of 65.

20% x 65 = 13. So the tip for the dinner is 13 dollars.

Now we have to add it to the original dinner cost.

65 + 13 = 78.

Therefore, the total cost of their meal is 78 dollars. So the answer is B, $78!

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3 years ago

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4) (Assume AR is tangent) Given: AR 12 SR - 7.7 Find: cs (Round to nearest tenth.)

andreev551 [17]

The length of CS is 11.0

Explanation:

Given that the length of the tangent AR is 12

The length of SR is 7.7

To find: The length of CS

The tangent secant theorem states that "if a tangent and a secant are drawn from an external point to a circle, then the square of the measure of the tangent is equal to the product of the measures of the secant’s external part and the entire secant."

Applying the tangent secant theorem, we have,

$AR^2=SR\times RC$