Предмет: Математика, автор: levkamorkovka

На рисунке изображен график движения туриста. 1) С какой скоростью шел турист последние пять часов?

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Автор ответа: sseyfedinova81

1

Ответ:

На рисунке 202 изображен график движения туриста.

1) На каком расстоянии от дома был турист через 10 часов после начала движения?

Смотрим по графику: по оси х указано время. Находим 10 часов и смотрим какому значению у (расстояние) оно соответствует (см. рисунок)

ОТВЕТ: 10 км

2) Сколько времени он затратил на остановку?

Турист прошёл за 4 часа 16 км, затем сделал остановку. Смотрим по оси х, показывающим время: отдых после 4 часов ходьбы, начало движения после 7 часов в пути: 7-4=3 часа

ОТВЕТ: 3 часа

3) Через сколько часов после выхода туриста был на 8 км от дома?

Смотрим по графику: по оси у указано расстояние. Находим 8 км и смотрим какому значению х оно соответствует: 2 часа

ОТВЕТ: через 2 часа

4) С какой скоростью шёл турист до остановки?

До остановки турист прошёл 16 км за 4 часа, значит скорость туриста была:

v(скорость)=S(расстояние)/t(время)=16/4=4 км/час

ОТВЕТ: 4 км/час

5) С какой скоростью шёл турист последние два часа?

За последние два часа турист прошёл 6 км, значит его скорость была:

v(скорость)=S(расстояние)/t(время)=6/2=3 км/час

ОТВЕТ: 3 км/час

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