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arlik [135]
3 years ago
6

Robyn saves up $204 and spends $32.50 on books. She wants to purchase more books from a sale where they cost $8.15 each. Which e

quation represents the situation? A. 204x=8.15+32.5 B. 8.15x+32.5=204 C. 8.15+32.5x=204 D. 32.5x=204⋅8.15
Mathematics
1 answer:
ValentinkaMS [17]3 years ago
8 0

Answer: B

Step-by-step explanation:

If we assume the no. of books to be x.

Value of more books will be 8.15 x

The equation will be

8.15x + 32.5 = 204

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A radio is being discounted 20%. If the sale price is $51.44, what was the original price of the radio? A. $12.86, B. 64.30, C.
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The equation for decreasing a price by 20% is 
original price x 0.8 = sale price

Here, we can fill in the sale price so
original price x 0.8 = 51.44

This can be rearranged to show:
51.44 ÷ 0.8 = original price

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Answer:

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SashulF [63]

Answer:

B. 4√3

Step-by-step explanation:

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3 years ago
Select each pair of functions that are inverses of each other
svlad2 [7]

Answer:

The first two choices only: A and B.

Step-by-step explanation:

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So the first pair are inverses because per point (x,y) on the first list you have (y,x) on the second list.

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Let's start with the first.

y=x+7

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x=y+7

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This is what g equals so the second choice is an answer.

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