Предмет: Математика, автор: Mefedron1

Нове срібло (альпака) — сплав нікелю, цинку і міді у відношенні 3:4:13. Запиши скільки кілограмів кожного металу треба взяти, щоб отримати 60 кг нового срібла?

Ответы

Автор ответа: tatsach

Ответ:

Пошаговое объяснение:

3+4+13=20 частей

60÷20=3 кг в 1 части

3×3=9 кг никиля

4÷3=12 кг цинка

13×3=39 кг меди

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