Question

Решите пожалуйста задачу срочно туристы проплыли на лодке 52км,4 ч они плыли со скоростью 7км/ч а остальной путь со скоростью 8км/ч,сколько всего времени находились в пути туристы

Answer 1

1) 4*7=28(км) первая часть пути
2) 52-28=24(км) вторая часть пути
3) 24:8=3(км/ч) вторая часть пути
4) 4+3=7(ч)

Answer 2

Problem Analysis

To solve this problem, we need to find the total time the tourists spent on their journey. They traveled a distance of 52 km, with a speed of 7 km/h for the first part of the journey and a speed of 8 km/h for the remaining distance.

Solution

To find the total time, we can divide the total distance by the average speed. The average speed can be calculated by finding the weighted average of the speeds for each part of the journey.

Let's calculate the total time step by step:

1. Calculate the time taken for the first part of the journey: - Distance: 52 km - Speed: 7 km/h - Time = Distance / Speed = 52 km / 7 km/h = 7.43 hours

2. Calculate the time taken for the second part of the journey: - Distance: Remaining distance after the first part (52 km - 52 km = 0 km) - Speed: 8 km/h - Time = Distance / Speed = 0 km / 8 km/h = 0 hours

3. Calculate the total time: - Total time = Time for the first part + Time for the second part = 7.43 hours + 0 hours = 7.43 hours

Therefore, the tourists spent a total of 7.43 hours on their journey.

Answer

The tourists spent a total of 7.43 hours on their journey.