Question

От одной станции одновременно в противоположных направлениях отправились два поезда.Скорость первого поезда 63км:,а скорость второго-на 8км:ч меньше.Через какое время расстояние между поездами будет 472км? Напишите пожалуйста решение

Answer 1

Надо найти скорость второго  это-  63-8=55
 Теперь надо 472:63 и 47:55 

Answer 2

63+55=118км/ч общая скорость удаления друг от друга!
472/118= 4 часа

Answer 3

Problem Analysis

We are given that two trains start simultaneously from the same station in opposite directions. The speed of the first train is 63 km/h, and the speed of the second train is 8 km/h less than the first train. We need to find the time it takes for the distance between the trains to be 472 km.

Solution

Let's assume that the time it takes for the distance between the trains to be 472 km is 't' hours.

The distance covered by the first train in 't' hours can be calculated using the formula: distance = speed × time. Therefore, the distance covered by the first train is 63t km.

The distance covered by the second train in 't' hours can be calculated using the same formula: distance = speed × time. Since the speed of the second train is 8 km/h less than the first train, the speed of the second train is (63 - 8) km/h = 55 km/h. Therefore, the distance covered by the second train is 55t km.

The total distance between the two trains is the sum of the distances covered by each train. Therefore, we have the equation: 63t + 55t = 472.

Simplifying the equation, we get: 118t = 472.

To find 't', we divide both sides of the equation by 118: t = 472 / 118 = 4.

Therefore, it will take 4 hours for the distance between the trains to be 472 km.

Answer

The time it takes for the distance between the two trains to be 472 km is 4 hours.

Calculation Steps

- Distance covered by the first train: 63t km. - Distance covered by the second train: 55t km. - Total distance between the two trains: 63t + 55t = 472. - Simplifying the equation: 118t = 472. - Solving for 't': t = 472 / 118 = 4.