Question

Пловец проплыл дистанцию за 9мин.первые 5мин он плыл со скоростью 85 м /мин,после чего скорость уменшилась на 6М/МИН.НАЙДИ ДЛИНУ ДИСТАНЦИИ

Answer 1

5*85=425 метров, 85-6=79 м/Мин скорость после уменьшения, 4 мин* 79=319 метров, дистанция: 425+319= 744 метра

Answer 2

Calculation of Distance

To find the length of the distance, we need to calculate the total distance covered by the swimmer during the given time period.

The swimmer swam for a total of 9 minutes. During the first 5 minutes, the swimmer swam at a speed of 85 m/min. After that, the speed decreased by 6 m/min.

To calculate the distance, we can break down the time into two parts: - The first 5 minutes, during which the swimmer swam at a speed of 85 m/min. - The remaining 4 minutes, during which the swimmer swam at a reduced speed of 79 m/min (85 m/min - 6 m/min).

Let's calculate the distance covered during each part and then add them together to find the total distance.

1. Distance covered during the first 5 minutes: - Speed: 85 m/min - Time: 5 minutes - Distance = Speed * Time = 85 m/min * 5 min = 425 meters

2. Distance covered during the remaining 4 minutes: - Speed: 79 m/min - Time: 4 minutes - Distance = Speed * Time = 79 m/min * 4 min = 316 meters

Now, let's add the distances covered during each part to find the total distance:

Total Distance = Distance covered during the first 5 minutes + Distance covered during the remaining 4 minutes = 425 meters + 316 meters = 741 meters

Therefore, the length of the distance covered by the swimmer is 741 meters.