What does each person do at a radio station? • DJ - вопрос №990516 от HACT91 17.12.2022 20:41

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HACT91 · Answer

4 ч 40 мин = 4 2/3 часах км/ч - скорость течения реки6 * (24 - х) = 4 2/3 * (24 + х)144 - 6х = 112 + 4 2/3х-6х - 4 2/3х = 112 - 144-10 2/3х = -32х = -32 : (-10 2/3)х = 32 * 3/32х = 3 км/ч - скорость течения реки...