willbraydenstep220il willbraydenstep220il

05-01-2018
Mathematics

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A teacher asks a student to find 5/4 of a number. Instead, the student finds 4/5 of the number. Her answer is 36 less than the correct answer.

What is the correct answer?

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aroshiayub aroshiayub

05-01-2018

5x/4 - 4x/5 = 36
25x/20 - 16x/20 = 36
9x/20 = 36
9x = 720
X = 80

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