Предмет: Математика, автор: iskakovamadina

Отношение массы золота и серебра в сплаве равно 5:3
1)Сколько граммов золота содержится в сплаве массой 16 г.?
2)Сколько граммов серебра содержитс в сплаве массой 56 г.?

Ответы

Автор ответа: CVita
0
найдем все части сплава и массу одной части
5+3=8
1)
16:8=2 гр.
золото 2*5=10 гр
2)
56:8=7 гр
серебро 7*3=21 гр
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