81 is 18% of what number?

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asked Feb 28, 2018 114k views

4 votes

81 is 18% of what number?

Mathematics
middle-school

Firas Assaad asked

by Firas Assaad

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2 Answers

2 votes

81 is 18% of 450.

18 81
-------- = --------
100 x

I used the cross multiplying method to figure out the next step.

18x = 100(81)

18x = 8100
------ ----------
18 18

x = 450

Moobi answered Mar 1, 2018

by Moobi

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3 votes

81 is 18% of 450 because if you divide 81 by 450 it would equal 0.18

Tanatach answered Mar 6, 2018

by Tanatach

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