Предмет: Математика, автор: rum652

При выпички хлеба из 10 кг ржаной муки получается 14 кг хлеба. Сколько килограммов припека получается?
1) Сколько килограммов муки надо взять, чтобы получилось 28 кг припека?
2) Сколько килограммов хлеба получат из этой муки?

Ответы

Автор ответа: Gorshe

Решение.

Из 10 кг муки получают 4 кг. припека:

14-10=4.

2.Составим пропорцию:

из 10 кг - получают 4 кг припека

из х кг. - получают 28 кг припека.

х=10*28/4=70 кг-нужно для получения 28 кг припека.

3.составим пропорцию

из 10 кг муки - получают 14 кг хлеба

из 70 кг муки - получают х кг хлеба.

х=14*70/10=98 кг. хлеба получат из 70 кг. муки.

Ответ: 4кг, 28кг, 98 кг.

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