Seudónimo Seudónimo

13-01-2016
Mathematics

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80 is 40 percent of what number?

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Аноним Аноним

13-01-2016

0.4a=80 ----- ----- 0.4 0.4 a=200 Where a is the number times 40%, which is 0.4 in decimal form.

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Billymkhoi Billymkhoi

13-01-2016

We have an equation: 80/?= 40/100

Cross multiply:
40*?= 80*100
⇒ ?= 80*100/40= 200

80 is 40% of 200~

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