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На 3-х полках стояло 110 книг,причём на 1-ой полке в 2 раза больше книг, чем на 2-й и на 5больше чем на 3-й . сколько книг стояло на каждой полке?
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Предмет:
Математика -
Автор:
santiago77 - 5 лет назад
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Ответы 1
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х вторая полка2х первая2х-5 третьях+2х+2х-5=1105х=115х=23 книги вторая полка23*2=46 книг первая46-5=41 книга третья
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Автор:
fideltp3c - 2 года назад
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4
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