Question

Два пешехода движутся навстречу друг другу.Скорость одного пешехода 5 км/ч,скорость другого пешехода 4 км/ч.На сколько км сближаются эти пешеходы за 1 час?за 2 ч?за 3 ч?5ч?

Answer 1

5+4=9км/час скорость сближения пешеходов за 1 час                                           9*2=18км за 2 часа                                                                                                     9*3=27 км за 3 часа                                                                                                     9*5=45 км за 5 часов                                                       

Answer 2

1)5+4=9(км)-пешеходы делают вместе за час.
2)9*1=9(км/1ч)
3)9*2=18(км/2ч)
4)9*3=27(км/3ч)
5)9*5=45(км/5ч)
Ответ: 1ч-9км,
           2ч-18км,
           3ч-27км,
           5ч-45км

Answer 3

Calculation of the Distance between Pedestrians

To calculate the distance between two pedestrians moving towards each other, we can use the formula: distance = speed * time.

Given that one pedestrian is moving at a speed of 5 km/h and the other at a speed of 4 km/h, we can calculate the distance they cover in different time intervals.

1. Distance covered in 1 hour: - The first pedestrian covers a distance of 5 km in 1 hour. - The second pedestrian covers a distance of 4 km in 1 hour. - Therefore, the total distance covered by both pedestrians in 1 hour is 9 km.

2. Distance covered in 2 hours: - The first pedestrian covers a distance of 10 km in 2 hours. - The second pedestrian covers a distance of 8 km in 2 hours. - Therefore, the total distance covered by both pedestrians in 2 hours is 18 km.

3. Distance covered in 3 hours: - The first pedestrian covers a distance of 15 km in 3 hours. - The second pedestrian covers a distance of 12 km in 3 hours. - Therefore, the total distance covered by both pedestrians in 3 hours is 27 km.

4. Distance covered in 5 hours: - The first pedestrian covers a distance of 25 km in 5 hours. - The second pedestrian covers a distance of 20 km in 5 hours. - Therefore, the total distance covered by both pedestrians in 5 hours is 45 km.

Please note that these calculations assume that the pedestrians maintain a constant speed throughout the given time intervals.