2 years ago

8 is 40% of what number? Please show your work

2 answers:

6 0

8 = 40%

Divide each side by 2.

4 = 20%

Multiply each side by 5.

4*5 = 20

20*5 = 100

8 is 40% of 20.

Check:

20 * 0.4 = 8

KengaRu [80]2 years ago

5 0

Do a proportion
40/100= 8/x
8 x 100= 800
Cross multiply and divide
800 divided by 40= 20
So answer is 20

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