Question

Два автомобиля выехали в одно время навстречу друг к другу из двух городов ,расстояние между которыми 450 км.Один из них проезжал в час 40 км.автомобили встретились через 5 часов .с какой скоростью ехал второй автомобиль

Answer 1

Второй автомобил ехал в час 9 км.

Answer 2

40 умножить на 5 =200                                                                                       450-200=250                                                                                                      250 ДЕЛИТЬ НА 5=50 КМ/Ч

Answer 3

Problem Analysis

Two cars start at the same time from two different cities and travel towards each other. The distance between the cities is 450 km. One car is traveling at a speed of 40 km/h. The cars meet after 5 hours. We need to determine the speed of the second car.

Solution

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

We know that the distance traveled by the first car is equal to its speed multiplied by the time it took to meet the second car. Similarly, the distance traveled by the second car is equal to its speed multiplied by the same time.

Since the total distance between the cities is 450 km, we can set up the following equation:

40 km/h * 5 hours + x km/h * 5 hours = 450 km

Simplifying the equation, we get:

200 km + 5x km = 450 km

Subtracting 200 km from both sides, we get:

5x km = 250 km

Dividing both sides by 5, we get:

x km = 50 km/h

Therefore, the second car was traveling at a speed of 50 km/h.

Answer

The second car was traveling at a speed of 50 km/h.