Question

Два пешехода вышли из двух пунктов Одновременно навстречу друг другу со скоростью 4 километров час и 5 километров час через сколько часов они встретятся если расстояние между пунктами равно s километров

Answer 1

4+5=9
Ответ: через s/9 часа

Answer 2

Problem Analysis

We have two pedestrians walking towards each other from two different points. The first pedestrian is walking at a speed of 4 kilometers per hour, and the second pedestrian is walking at a speed of 5 kilometers per hour. We need to determine how many hours it will take for them to meet if the distance between the points is s kilometers.

Solution

To solve this problem, we can use the formula: time = distance / relative speed.

The relative speed is the sum of the speeds of the two pedestrians, which is 4 + 5 = 9 kilometers per hour.

Therefore, the time it will take for the pedestrians to meet is: time = s / 9.

Let's calculate the time in hours using the given distance.

Calculation

Given that the distance between the two points is s kilometers, we can calculate the time it will take for the pedestrians to meet using the formula: time = s / 9.

Substituting the given values, we have:

time = s / 9.

Therefore, the pedestrians will meet after s / 9 hours.

Answer

The pedestrians will meet after s / 9 hours.

Please let me know if there is anything else I can help you with.