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Решите задачу. Лодка плыла по течению реки 3 часа, а возвращалась обратно уже 5 часов. Найдите собственную скорость лодки, если скорость течения реки составляет 2 км/ч.
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Предмет:
Математика -
Автор:
díazhxpg - 6 лет назад
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Ответы 1
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Ответ:
Пошаговое объяснение:
3*(x+2)=5*(x-2)
3x+6=5x-10
3x-5x=-10-6
-2x=-16
x=-16/(-2)
x=8
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Автор:
garfield - 6 лет назад
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