Предмет: Математика, автор: bogdanlukancuk7

Будь ласка дайте відповідь 30 балів даю чесне слово

Приложения:

bogdanlukancuk7: Я можу покластися 30 балів даю

Ответы

Автор ответа: Zombynella
0

Ответ:

В решении.

Пошаговое объяснение:

Чтобы найти среднюю скорость, нужно разделить весь путь, пройденный объектом, на все время его движения.

1) 57 * 2 = 114 (км) - проехал грузовик со скоростью 57 км/час;

2) 58 * 3 = 174 (км) - проехал грузовик со скоростью 58 км/час;

3) 114 + 174 = 288 (км) - весь путь грузовика;

4) 2 + 3 = 5 (часов) - время движения грузовика;

5) 288 : 5 = 57,6 (км/час) - средняя скорость грузовика.

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