Предмет: Математика, автор: oljkirov

как решить задачу.
гречневая крупа содержит 10% белков,2.5% жиров и 60% углеводов. Сколько белков жиров и углеводов содержится в 57.6 кг гречневой крупы.

Ответы

Автор ответа: 1997Margo
0

всего  2 кг - 100%
белки 10 %
крест на крест: 10*2/100=0,2 кг
всего 2 кг - 100%
жиры 2,5%
крест на крест: 2,5*2/100=0,05 кг
всего 2 кг - 100%
углеводы 60%
крест на крест: 60*2/100=1,2 кг

Автор ответа: oljkirov
0
большое спасибо
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