Question

Автобус за 8 часов прошел расстояние 560 км. на обратный путь он затратил 7 часов. на сколько изменилась скорость автобуса на обратном пути

Answer 1

1)560/8=70км/ч
2)560/7=80 км/ч
3) 80 -70=10 км/ч
Ответ:скорость автобуса  увеличилась на 10 км/ч

Answer 2

Calculation of the Bus Speed

To calculate the change in the speed of the bus on the return journey, we need to determine the initial speed of the bus on the outbound journey. We can do this by dividing the distance traveled by the time taken on the outbound journey.

Given: - Distance traveled on the outbound journey: 560 km - Time taken on the outbound journey: 8 hours

Using the formula: Speed = Distance / Time, we can calculate the initial speed of the bus on the outbound journey.

Initial speed = 560 km / 8 hours = 70 km/h.

Now, let's calculate the speed of the bus on the return journey.

Given: - Time taken on the return journey: 7 hours

Using the formula: Speed = Distance / Time, we can calculate the speed of the bus on the return journey.

Speed on the return journey = 560 km / 7 hours = 80 km/h.

Change in the Speed of the Bus

To determine the change in the speed of the bus on the return journey, we need to calculate the difference between the initial speed and the speed on the return journey.

Change in speed = Speed on the return journey - Initial speed = 80 km/h - 70 km/h = 10 km/h.

Therefore, the speed of the bus increased by 10 km/h on the return journey.