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Для разделения доски на 4 части требуется 9 минут. Сколько времени потребуется для разделения её на 5 частей?
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Предмет:
Математика -
Автор:
jadynt8l2 - 6 лет назад
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Ответы 3
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там же спрашиваеться на 5 частей?
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Автор:
cooley - 6 лет назад
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0
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а ну тогда нужно 9 разделить на 4 и умножить на 5
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Автор:
keshawnojb6 - 6 лет назад
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0
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Один распил совершают за 9/3 = 3 минуты. Тогда 4 сделают за 4х3 = 12.
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Автор:
harding - 6 лет назад
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0
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