3 years ago

21 is 75% of what number? I don't get it.

Mathematics

2 answers:

Artist 52 [7]3 years ago

8 0

21=75/100x
2100=75x
X=2100/75=28

Rina8888 [55]3 years ago

7 0

21 is 75% of 28. If you use a calculator, you can just put 21×100÷75. Or if you need to do it on paper, you could do...

1. do 75/100×21

2.multiply both sides by 100 and the divide by 75

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