noahchambers04 noahchambers04

24-01-2017
Mathematics

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1. 15 is what percent of 40?
2. 15 is 30% of what number?
3. What number is 120% of 70?

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Аноним Аноним

24-01-2017

1. 15 is what percent of 40?
15 * 100 / 40 = 37.5
answer is 15 is 37.5% of 40

2. 15 is 30% of what number?
15 / 0.3 = 50
answer : 15 is 30% of 50

3. What number is 120% of 70?
120% = 1.2
1.2 + 1 = 2.2

2.2 * 70 = 154
answer: 154 is 120% of 70?

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