Question

Решите пожалуйста по действиям. Из одного пункта одновременно в разных направлениях вышли два поезда. Через 4 часа между ними 476км. Найдите скорость каждого поезда, если у одного из них она на 5км/ч больше, чем у другого.

Answer 1

X-скорость поезда с меньшей скоростью
x+5-скорость поезда с большей скоростью
s=vt
476=4·x+4·(5+x)=4x+20+4x=8x+20
8x=476-20
8x=456
x=57
x+5=57+5=62
Ответ:57км/ч и огромные62км/ч

Answer 2

Problem Analysis

We have two trains that start from the same point and travel in different directions. After 4 hours, the distance between them is 476 km. We need to find the speed of each train, given that one train's speed is 5 km/h greater than the other.

Solution

Let's assume the speed of one train is x km/h. Since the speed of the other train is 5 km/h greater, its speed will be (x + 5) km/h.

To find the distance traveled by each train in 4 hours, we can use the formula: distance = speed × time.

For the first train, the distance traveled in 4 hours is 4x km. For the second train, the distance traveled in 4 hours is 4(x + 5) km.

According to the problem, the distance between the two trains after 4 hours is 476 km. Therefore, we can set up the following equation:

4x + 4(x + 5) = 476

Simplifying the equation:

4x + 4x + 20 = 476

8x + 20 = 476

8x = 456

x = 57

So, the speed of the first train is 57 km/h, and the speed of the second train is 62 km/h.

Answer

The speed of the first train is 57 km/h, and the speed of the second train is 62 km/h.