Предмет: Математика, автор: SashaSnek444

Решите пожалуйста задачу!!

Приложения:

Ответы

Автор ответа: sachok1802

Ответ:

Пошаговое объяснение:

первый час - 120 км/ч

второй и третий час - 85 км/ч

четвертый и пятый час - 75 км/ч

всего часов 5, значит

(120 + 85 * 2 + 75 * 2) : 5 = (120 + 170 + 150) : 5 = 440 : 5 = 88 км/ч - средняя скорость

Автор ответа: Clevercrab

Ответ:

Нужно умножить скорость на время, а потом поделить расстояние на время.

Пошаговое объяснение:

120*1=120 км

85*2=170 км

75*2=150 км

120+170+150=440 км

1+2+2=5 часов

440/5=88 км/ч

Ответ: 88 км/ч средняя скорость автомобиля

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