Предмет: Математика, автор: lihanova2

Жилезо составляет 90 процентов сплава, остольное никель.Сколько килограммов жилеза и сколько килограммов никеля содержится в составе сплава массой 51 кг?

Ответы

Автор ответа: Anny2002

90%=0,9
51*0,9=45,9 (кг) - железа
51-45,9=5,1 (никеля)
Ответ: 45,9 кг железа и 5,1 никеля.

lihanova2: Спасибо

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