Question

Помогите решить!Два поезда вышли одновременно навстречу друг другу из дву городов расстояние между которыми 644км.Скорость одного поезда 48км\ч.Найди скорость другого, если известно, что поезда встретились через 7 часов

Answer 1

1)48×7=336км 2)644-336=308км 3)308÷7=44км в ч Ответ: скорость второго 44 километра в час

Answer 2

Problem Statement:

Два поезда вышли одновременно навстречу друг другу из двух городов, расстояние между которыми составляет 644 км. Скорость одного поезда составляет 48 км/ч. Найдите скорость другого поезда, если известно, что они встретились через 7 часов.

Solution:

To find the speed of the second train, we can use the formula:

Speed = Distance / Time

Given that the distance between the two cities is 644 km and the first train's speed is 48 km/h, we can calculate the time it takes for the trains to meet using the formula:

Time = Distance / Speed

Let's calculate the time it takes for the trains to meet:

Time = 644 km / 48 km/h

Calculating this, we find that the time it takes for the trains to meet is approximately 13.42 hours.

Now, we know that the trains meet after 7 hours. To find the speed of the second train, we can subtract the time it took for the trains to meet from the total time:

Time taken by the second train = Total time - Time taken for the trains to meet

Time taken by the second train = 7 hours - 13.42 hours

Calculating this, we find that the time taken by the second train is approximately -6.42 hours. However, since time cannot be negative, we can conclude that there is an error in the given information or calculation.

Please double-check the given information and provide any additional details if available, so that we can assist you further.