Question

125. 1) Из посёлка вышли Одновременнопротивоположных направлениях два пешехода, Скорость одного ешехода 5 км/ч, скорость другого 4 км/ч. На какорасстоянии друг от друга будут пешеходы через зч?5 км/ч4 км/чвычис.?400902) Из посёлка вышли одновременно в противополож-ных направлениях два пешехода. Скорость одного пе-шехода /5 км/ч, скорость другого 4 км/ч. Черезсколько часов расстояние между ними будет 27 км?5 км/ч 4 км/чтко,27 км9:703) Из посёлка вышли одновременно в противополож-ных направлениях два пешехода. Через 3 чрасстоя-ние между ними было 27 км. Первый пешеход шёлсо скоростью 5 км/ч. с какой скоростью шёл вто-рой пешеход?5 км/ч ?пеостьове27 км126. Составь и реши з похожие задачи.!!!​

Answer 1

Ответ:

48614629873198245082

Answer 2

Problem 1: Distance between Two Pedestrians

Two pedestrians walk in opposite directions from a village. One walks at a speed of 5 km/h, and the other at 4 km/h. We need to find the distance between them after a certain time.

The relative speed of the two pedestrians is the sum of their individual speeds.

Solution: The relative speed of the two pedestrians is 5 km/h + 4 km/h = 9 km/h.

Let's denote the time taken as t hours.

The distance covered by the first pedestrian = 5 km/h * t = 5t km.

The distance covered by the second pedestrian = 4 km/h * t = 4t km.

The total distance between them is the sum of the distances covered by both pedestrians, which is 5t + 4t = 9t km.

Answer: The distance between the pedestrians after t hours is 9t km.

Problem 2: Time to Cover a Certain Distance

Two pedestrians walk in opposite directions from a village. One walks at a speed of 5 km/h, and the other at 4 km/h. We need to find the time it takes for the distance between them to be 27 km.

The relative speed of the two pedestrians is the sum of their individual speeds.

Solution: The relative speed of the two pedestrians is 5 km/h + 4 km/h = 9 km/h.

Let's denote the time taken as t hours.

The total distance covered by both pedestrians is 27 km.

Using the formula distance = speed * time, we can find the time taken: 9t = 27 t = 27 / 9 t = 3 hours

Answer: It will take 3 hours for the distance between the pedestrians to be 27 km.

Problem 3: Finding the Speed of the Second Pedestrian

Two pedestrians walk in opposite directions from a village. After 3 hours, the distance between them was 27 km. The first pedestrian walked at a speed of 5 km/h. We need to find the speed of the second pedestrian.

The relative speed of the two pedestrians is the sum of their individual speeds.

Solution: The relative speed of the two pedestrians is 27 km / 3 hours = 9 km/h.

Since the first pedestrian walked at 5 km/h, the speed of the second pedestrian can be found using the relative speed formula: Relative speed = Speed of first pedestrian + Speed of second pedestrian 9 km/h = 5 km/h + Speed of second pedestrian Speed of second pedestrian = 9 km/h - 5 km/h Speed of second pedestrian = 4 km/h

Answer: The second pedestrian walked at a speed of 4 km/h.

Additional Problems:

1. Two cyclists start from the same point and ride in opposite directions. One cycles at a speed of 12 km/h, and the other at 8 km/h. How far apart will they be after 2.5 hours? 2. Two cars start from the same point and drive in opposite directions. One car travels at 60 km/h, and the other at 45 km/h. How long will it take for the distance between them to be 315 km?