gaudvile2006 gaudvile2006

09-02-2016
Mathematics

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1/5 of a number is 8. What is the number?

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emmawshomper emmawshomper

09-02-2016

40 because 8 times 5 is 40 which makes 8 one fifth of 40 .

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Billymkhoi Billymkhoi

09-02-2016

We set up a proportion: 8/?= 1/5

Cross multiply: 1*?= 8*5
⇒ ?= 8*5/1= 40

1/5 of 40 is 8.

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