Question

Собственная скорость лодки 5.3 км/ч. скорость течения 1.1 км/ч. лодка проплыла 3 ч. против течения и 1.5 ч. по течению реки.Какой путь проплыла лодка за это время? Помогите пожалуйста,очень нужно.

Answer 1

1) 5,3 +1,1=6,4 км/ч - скорость по течению
2) 5,3 - 1,1=4,2 км/ч - скорость против течения
3) 6,4 * 1,5 =9,6 км - путь по течению
4) 4,2 * 3=12,6 км - путь против течения
5) 9,6+12,6=22,2 км - весь путь

Answer 2

1) 5.3- 1.1 = 4.2 км/ч
2)4.2* 3 = 12.6 км - столько лодка проплыла против течения реки
3)5.3+1.1 = 6.4 км/ч
4)6.4* 1.5 = 9.6 км- столько лодка проплыла по течению реки
5)12,6 + 9.6 = 22.2 км.
Ответ: 22.2 км проплыла лодка за это время.

Answer 3

Calculation of the Distance Traveled by the Boat

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

Given: - Boat's own speed: 5.3 km/h - Speed of the current: 1.1 km/h - Time spent traveling against the current: 3 hours - Time spent traveling with the current: 1.5 hours

To calculate the distance traveled against the current, we can use the formula:

Distance = Speed × Time

The speed against the current is the difference between the boat's own speed and the speed of the current:

Speed against the current = Boat's own speed - Speed of the current

Let's calculate the distance traveled against the current:

Distance against the current = (Boat's own speed - Speed of the current) × Time spent traveling against the current

Substituting the given values:

Distance against the current = (5.3 km/h - 1.1 km/h) × 3 hours

Calculating the distance against the current:

Distance against the current = 4.2 km/h × 3 hours = 12.6 km

To calculate the distance traveled with the current, we can use the same formula:

Distance with the current = (Boat's own speed + Speed of the current) × Time spent traveling with the current

Substituting the given values:

Distance with the current = (5.3 km/h + 1.1 km/h) × 1.5 hours

Calculating the distance with the current:

Distance with the current = 6.4 km/h × 1.5 hours = 9.6 km

Finally, to calculate the total distance traveled by the boat, we add the distances traveled against the current and with the current:

Total distance traveled = Distance against the current + Distance with the current

Substituting the calculated values:

Total distance traveled = 12.6 km + 9.6 km = 22.2 km

Therefore, the boat traveled a total distance of 22.2 kilometers during the given time.