Предмет: Математика, автор: irinachoban2010

Для изготовления казеинового клея, берут 11 частей воды, 5 частей нашатырного спирта и 4 части казеина (по массе). Сколько граммов каждого вещества нужно взять, чтобы приготовить 720 грамм клея?

Ответы

Автор ответа: ChristmasIQ2

Ответ:

Пошаговое объяснение:

11+5+4=20частей

720÷20=36 г 1 часть

36×11=396 г воды

36×5=180г нашатырного спирта

36×4=144г казеина

irinachoban2010: СПАСИБО!!! Очень помогли ! :)

kev1983god: спасибо

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CONQUERING MOUNT EVEREST

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