Question

Пловец спрыгнул с лодки и поплыл к берегу через 3 минуты он проплыл 3/5 (типа дробь ) расстояния до берега .сколько времени ему осталось плыть , если скорость движения не менялась

Answer 1

5/5=5минут 5-3=2 Ответ 2минуты

Answer 2

 5-3=2 осталось 2 минуты: (так-как он за 3 минуты проплыл 3\5, значит за 1 минуту- 1\5)

Answer 3

Problem Analysis

A swimmer jumps off a boat and swims towards the shore. After 3 minutes, the swimmer has covered 3/5 of the distance to the shore. We need to determine how much time the swimmer has left to swim if their speed remains constant.

Solution

Let's assume that the total distance from the boat to the shore is represented by D. We are given that after 3 minutes, the swimmer has covered 3/5 of the distance, which is (3/5)D.

To find the remaining distance, we subtract the distance covered from the total distance: Remaining distance = Total distance - Distance covered Remaining distance = D - (3/5)D Remaining distance = (2/5)D

Since the swimmer's speed remains constant, we can assume that the time taken to cover a certain distance is directly proportional to the distance itself. Therefore, the remaining time can be calculated using the same ratio: Remaining time = Total time - Time taken Remaining time = 3 minutes - 3 minutes * (3/5)

Let's calculate the remaining time:

Remaining time = 3 minutes - 3 minutes * (3/5) Remaining time = 3 minutes - 9/5 minutes Remaining time = 3 minutes - 1 minute and 48 seconds Remaining time = 1 minute and 12 seconds

Therefore, the swimmer has 1 minute and 12 seconds left to swim.

Answer

The swimmer has 1 minute and 12 seconds left to swim if their speed remains constant.