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If a game costs $36.00 when it is on sale for 10% off, what is its original cost?
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If a game costs $36.00 when it is on sale for 10% off, what is its original cost?

User LiamRyan
by
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2 Answers

3 votes

Answer:

$40.00

Explanation:

User Dpetrini
by
6.5k points
0 votes

Answer:

Original cost = $40

Explanation:

Let the original cost be $x.

Therefore,


x - (10)/(100) * x = 36 \\ \\ x - (1)/(10) x = 36 \\ (10x - x)/(10) = 36 \\ (9x)/(10) = 36 \\ 9x = 360 \\ x = (360)/(9) \\ x = \$ 40

User Vova Yatsyk
by
4.5k points
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