Предмет: Математика, автор: lmelnikova526

мне надо решить задачу: для школы купили 5 мотков электрического провода, по 56 м в каждом. Израсходовали две седьмых части всего провода. Сколько метров провода осталось?

Ответы

Автор ответа: babupshka

65 х 5 =280 м. провода купили всего. 280 : 7 х 2 =80 м. израсходовали. 280 - 80 = 200 м. осталось. Ответ: 200 м. осталось.

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