Question

Собственная скорость катера 30 км/ч а скорость течения реки 2.2 км/ч Сначало катер шёл 1.2 ч против течения, а затем 0.8 ч по течению. Какой путь катер прошёл за всё это время?

Answer 1

1)30-2.2=27.8 (км/ч)-скорость против течения 
2)27.8*1.2=33.36 (км) прошел против течения
3)30+2.2=32.2 (км/ч) скорость по течению
4)32.2*0.8=25,76 км прошел по течению5) 33,36 +25,76=59,12 км прошел катер за все время

Answer 2

Calculation of the Distance Traveled by the Boat

To calculate the distance traveled by the boat, we need to consider the time it spent traveling against the current and the time it spent traveling with the current.

Given: - Boat's own speed: 30 km/h - River current speed: 2.2 km/h - Time spent traveling against the current: 1.2 hours - Time spent traveling with the current: 0.8 hours

To calculate the distance traveled against the current, we can use the formula: distance = speed * time. Substituting the values, we get: distance against current = 30 km/h * 1.2 hours.

To calculate the distance traveled with the current, we can use the same formula: distance = speed * time. Substituting the values, we get: distance with current = 30 km/h * 0.8 hours.

Now, let's calculate the distances:

- Distance traveled against the current: distance against current = 30 km/h * 1.2 hours = 36 km. - Distance traveled with the current: distance with current = 30 km/h * 0.8 hours = 24 km.

To find the total distance traveled, we can add the distances traveled against and with the current: total distance = distance against current + distance with current.

Substituting the values, we get: total distance = 36 km + 24 km = 60 km.

Therefore, the boat traveled a total distance of 60 km during the given time period.

Please let me know if there's anything else I can help you with!