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На стройку дома доставили 1680 т строительных материалов.Масса извести состовляла 1 -десятая этого груза,масса цемента -1-двенадцатая.а астольное масс кирпича ,сколько тонн кирпича доставили
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Предмет:
Математика -
Автор:
benjamínhughes - 6 лет назад
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Ответы 1
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1680-1680*1/10-1680*1/12=1680-168-140=1372кг
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Автор:
zaqueowaters - 6 лет назад
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