Krystal33 Krystal33

09-02-2016
Mathematics

contestada

8 is what percent of 400?

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Billymkhoi Billymkhoi

09-02-2016

We set up a proportion: 8/400= ?/100

Cross multiply:
400*?= 8*100
⇒ ?= 8*100/400= 2

8 is 2% of 400.

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09-02-2016

8 = x% * 400

8 = x/100 * 400

8 = x * 4

4x = 8

Divide 4 on both sides.

x = 8/4

x = 2

2 percent of 400 is 8.

Answer Link

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