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Автор - Nada12345678a

У 600 г розчину міститься 45 г цукру визначте відсоток цукру в розчині

Ответ

Автор - bedypikmelihor

Ответ 7,5

600г - 100

45г - x

600х=45*100

х= 4500:600

Х=7,5

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