Предмет: Математика, автор: ШВАЮН

Прокладывая участок скоростного шоссе длиной 40 км ,за первую неделю рабочие заасфальтировали 3/20 участка, а за вторую - 4/17 оставшейся части. Солько километров дороги заасфальтировали за вторую неделю?

Ответы

Автор ответа: Мария97531

40/20*3=6км-за первую неделю

40-6=34км-осталось

34/17*4=8км-за вторую

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