Предмет: Математика, автор: annaprokopisina1

Автобус їхав 2 год зі швидкістю 54км/год і 4 год зі швидкістю 60 км/год знайдіть середню швидкість руху автобуса на всьому шляху

Ответы

Автор ответа: pencil05

Ответ:

1) 82*2=164(км) проехал за 2 часа

70*4=280(км) проехал за 4 часа

3) 164+280=444(км) проехал всего

4) 2+4=6(часов)

был в пути

5) 444:6=74 (км/час) средняя

скорость

Ответ: 74(км/час) средняя скорость

автобуса

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