Question

Пешеход за первый час прошел 5,7 км.,за второй 5,4 км.,за третий 4,8.Найдите среднюю скорость пешехода за все время движения

Answer 1

5,7+5,4+4,8=15,9

15,9:3=5,3
ответ 5,3  

Answer 2

Calculating Average Speed of the Pedestrian

To find the average speed of the pedestrian, we can use the formula:

Average Speed = Total Distance / Total Time

First, let's calculate the total distance covered by the pedestrian:

- Distance covered in the first hour: 5.7 km - Distance covered in the second hour: 5.4 km - Distance covered in the third hour: 4.8 km

Total distance = 5.7 km + 5.4 km + 4.8 km = 15.9 km

Now, let's calculate the total time taken:

- Total time = 1 hour + 1 hour + 1 hour = 3 hours

Using the formula, we can find the average speed:

Average Speed = 15.9 km / 3 hours = 5.3 km/h

Therefore, the average speed of the pedestrian for the entire duration of movement is 5.3 km/h.