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Автомобиль ехал со скоростью 61 км/ч и 7 часов со скоростью 73 км/ч. Найдите среднюю скорость автомобиля за время движения
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Предмет:
Математика -
Автор:
baronosborn - 6 лет назад
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Ответы 3
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спс
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Автор:
adaphelps - 6 лет назад
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0
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угу
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Автор:
summerschmidt - 6 лет назад
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0
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Средняя скорость находится так: весь путь делится на всё время
Получается: (5х61+7х73)/(7+5)=(305+511)/12=816/12=68км/ч
Ответ:ср.скорость-68км/ч
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Автор:
peña61 - 6 лет назад
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0
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