Предмет: Математика, автор: Jtata24

Кухня в 10 м в квадрате составляет 0,4 всех нежилых помещений квартиры.площадь нежилых помещений составляет 5/18 площади всей квартиры.Найдите площадь всей квартиры?

Ответы

Автор ответа: ali79

нежилые помещения-1

10-0.4

Х-1

Х=10*1:0.4=25м2 составляют нежилые помещения

25:5*18=90м2 площадь квартиры

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