Question

Расстояние между двумя городами 350 км.Одновременно из одного города в другой выехали два автомобиля,скорость одного из них на 20 км/час больше скорости другого.Найди скорость каждого автомобиля если один проехал на 2 час раньше .Скорости запиши в порядке возрастания.35 баллов

Answer 1

Объяснение:

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Answer 2

Ответ:

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Answer 3

Calculating the Speed of Two Cars

To find the speeds of the two cars, we can use the following approach:

1. Let's assume the speed of the slower car is x km/h. 2. Then, the speed of the faster car would be (x + 20) km/h. 3. We know that the distance between the two cities is 350 km. 4. The time taken by the slower car to cover the distance is (350 / x) hours. 5. The time taken by the faster car to cover the same distance is (350 / (x + 20)) hours.

Now, we are given that one car arrived 2 hours earlier than the other. Using this information, we can form the equation:

(350 / x) - (350 / (x + 20)) = 2

Let's solve this equation to find the values of x and (x + 20).

Solving the Equation

Let's solve the equation (350 / x) - (350 / (x + 20)) = 2 to find the speeds of the two cars.

The solution to this equation will give us the speeds of the two cars in km/h.

Calculating the Speeds

Using the given equation, we can solve for the speeds of the two cars. After solving the equation, we find that the speed of the slower car is 50 km/h and the speed of the faster car is 70 km/h.

So, the speeds of the two cars, in ascending order, are: - 50 km/h - 70 km/h