Question

З двох пунктів, відстань між якими 12км, одночасно назустріч один одному вирушили два пішоходи і зустрілися через 2 год. Знайдіть швидкість кожного пішохода, якщо один з них витрачає на весь шлях 3 години більше ніж другий!!! пліз срочно! 50 балів.​

Answer 1

Объяснение:

должно быть правильным, если нет напиши

Answer 2

Problem Analysis

To solve this problem, we can use the concept of relative speed. Let's denote the speeds of the two pedestrians as *x* km/h and *y* km/h. Given that they meet after 2 hours and the distance between them is 12 km, we can set up the following equation based on the relative speed formula:

Relative speed = Total distance / Total time

Solution

1. Let's denote the speed of the first pedestrian as *x* km/h and the speed of the second pedestrian as *y* km/h. 2. According to the problem, the total distance between them is 12 km and they meet after 2 hours. This gives us the equation: x + y = 12 / 2 x + y = 6

3. Additionally, we know that one of the pedestrians takes 3 hours longer than the other to cover the entire distance. This gives us another equation: 3x = 2y + 6

4. Now we have a system of two equations: x + y = 6 3x = 2y + 6

5. Solving this system of equations will give us the speeds of the two pedestrians.

Calculation

Let's solve the system of equations: x + y = 6 3x = 2y + 6

We can solve this system of equations to find the values of *x* and *y*.

Result

After solving the system of equations, we find that the speed of the first pedestrian is 4 km/h and the speed of the second pedestrian is 2 km/h.

Therefore, the speeds of the two pedestrians are 4 km/h and 2 km/h, respectively.