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из двух городов расположенных на расстоянийм400км одновременно навстречу друг другу выехали две машины. скорость первой-40км/ через 2часа они сблизились на 180км. какая скорость у второй машины
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Предмет:
Математика -
Автор:
kathy87 - 4 года назад
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Ответы 1
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1) 180:2=90(км/ч) Скорость сближения2) 90-40=50(км/ч)
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Автор:
gutierrez - 4 года назад
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Известно, что 2.2 меньше корень из 5 меньше 2.3 и 2.8 меньше корень из 8 меньше 2.9.
оцените корень из 5 - 3 корень из 8
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