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Veronika [31]
2 years ago
7

I need help solving this

Mathematics
1 answer:
Masja [62]2 years ago
5 0

Answer:

50° and 40°

Step-by-step explanation:

complementary angles sum to 90°

80% = \frac{80}{100} = 0.8

let the 2 angles be x and 0.8x , then

x + 0.8x = 90

1.8x = 90 ( divide both sides by 1.8 )

x = 50

0.8x = 0.8 × 50 = 40

the 2 angles are 50° and 40°

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expeople1 [14]

Answer:

D. $16.42

Step-by-step explanation:

In order to find the sales tax of a product, you need to multiply the product's price by the sales tax in decimal form.

To find the decimal form of a percentage, you simply move the decimal paint two spaces to the left. So, 8.25% in decimal form is 0.0825.

199.99 * 0.0825 = 16.499175

This number is closest to $16.42, so D is the correct answer.

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netineya [11]

Answer:

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Step-by-step explanation:

we know that

The surface area of a rectangular prism is given by the formula

SA=2B+PH

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B is the area of the base

P is the perimeter of the base

H is the height of the prism

Let

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Let

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