Question

Из посёлка одновременно в противоположных направлениях вышел пешеход и выехал велосипедист.когда велосипедист проехал 22 км со скоростью 11 км/ч, расстояние между ними стало 30км.с какой скоростью шёл пешеход?

Answer 1

1) 22/11 = 2 (ч.)- за 2 часа проехал велосипедист 22 км.2) 30-22 = 8 (км) - прошел пешеход.3) 8/2 = 4 (км/ч.) - скорость пешехода.

Answer 2

Problem Analysis

We have a situation where a pedestrian and a cyclist start from a village in opposite directions. After the cyclist travels a certain distance, the distance between them becomes 30 km. We need to determine the speed at which the pedestrian is walking.

Solution

Let's assume the speed of the pedestrian is x km/h.

The cyclist travels 22 km with a speed of 11 km/h. We can use the formula distance = speed × time to find the time it took for the cyclist to travel 22 km: 22 km = 11 km/h × t.

Simplifying the equation, we find that t = 2 hours.

After 2 hours, the distance between the pedestrian and the cyclist is 30 km. We can use the formula distance = speed × time to find the distance the pedestrian traveled in 2 hours: 30 km = x km/h × 2 hours.

Simplifying the equation, we find that x = 15 km/h.

Therefore, the pedestrian is walking at a speed of 15 km/h.

Answer

The pedestrian is walking at a speed of 15 km/h.