Question

Составь уравнение и реши задачу, из посёлка одновременно в противоположных направлениях вышли два пешехода. через 3 ч расстояние между ними было равно 27 км. один из них шел со скоростью 4 км/ч с какой скоростью шел второй пешеход?

Answer 1

(27-4*3):3=5(км/ч)
Ответ: второй пешеход шёл со скоростью 5 км/ч.

Answer 2

Formulating the Equation

Two pedestrians walked in opposite directions from a village simultaneously. After 3 hours, the distance between them was 27 km. One of them walked at a speed of 4 km/h. We need to find the speed of the other pedestrian.

Let's denote the speed of the second pedestrian as x km/h. The equation representing the situation is:

3(4 + x) = 27

Solving the Equation

Now, let's solve the equation to find the speed of the second pedestrian.

Using the equation 3(4 + x) = 27: - First, distribute the 3: 12 + 3x = 27 - Then, subtract 12 from both sides: 3x = 15 - Finally, divide by 3: x = 5

Answer

The speed of the second pedestrian was 5 km/h.