Предмет: Математика, автор: adbulbasirova

помогите пожалуйста срочно надо 820

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Автор ответа: helver

1) 5%=35, 100%=x x=35*100/5=700

2) 100%=7, 40%=x x=40*7/100=2,8

3) 100%=200, x%=100 x=100*100/200=50

4) 12%=60, 100%=x x=100*60/12=500

5) 100%=75, 15%=x x=15*75/100=11,25

6) 100%=15, x%=3 x=100*3/15=20

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