Question

Теплоход плыл 4,2 ч по течению реки и 2,4 ч против течения.какой путь проплыл теплоход, если его скорость против течения равна 27,3 км/ч, а скорость течения реки 2,2 км/ч

Answer 1

Ответ:

Пошаговое объяснение:

27,3+2,2=29,5(км/ч) обычная скорость теплохода

29,5+2,2=31,7(км/ч) скорость по течению

31,7•4,2=133,14(км) проехал по течению теплоход

27,3•2,4=65,52(км) проехал теплоход против течения

133,14+65,52=198,66(км) проехал всего теплоход

Ответ:198,66км

Answer 2

Calculation of the Distance Traveled by the Boat

To calculate the distance traveled by the boat, we can use the formula:

Distance = Speed x Time

Given the following information: - Speed of the boat against the current: 27.3 km/h - Speed of the current: 2.2 km/h - Time taken to travel with the current: 4.2 hours - Time taken to travel against the current: 2.4 hours

Let's calculate the distance traveled by the boat in each scenario.

Distance traveled with the current: Speed of the boat with the current = Speed of the boat - Speed of the current = 27.3 km/h - 2.2 km/h = 25.1 km/h

Distance traveled with the current = Speed with the current x Time = 25.1 km/h x 4.2 hours = 105.42 km

Distance traveled against the current: Speed of the boat against the current = Speed of the boat + Speed of the current = 27.3 km/h + 2.2 km/h = 29.5 km/h

Distance traveled against the current = Speed against the current x Time = 29.5 km/h x 2.4 hours = 70.8 km

Therefore, the total distance traveled by the boat is the sum of the distances traveled with and against the current:

Total distance traveled = Distance with the current + Distance against the current = 105.42 km + 70.8 km = 176.22 km

So, the boat traveled a distance of 176.22 km.