Предмет: Математика, автор: TodayTop

У сплаві міститься 18 кг олова. Який відсоток вмісту олова у сплаві, якщо сплаву є 400 кг?

Ответы

Автор ответа: dyexfnf

2

Ответ:

Пошаговое объяснение:

400 кг - 100%

18 кг - х %

х= 18 * 100% : 400

х= 4,5 % вмісту олова у сплаві

TodayTop: Дякую

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