Вопрос школьника по предмету Математика
Из города одновременнно в противоположных направлениях выехали автрбус и грузовик.Скорость автобуса 80 км/час,скорость грузовика 70 км/час. Какое рассиояние будет между ними через 5 часов.
Ответ учителя по предмету Математика
70+80=150 (км/ч) скорость удаления
150*5=750 (км)
Ответ: через 5 часов между ними будет 750 км
или
80*5=400 (км) проедет автобус за 5 ч
70*5=350 (км) проедет грузовик за 5 ч
400+350=750 (км)
Ответ: через 5 ч между ними будет 750 км
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