Question

Помогите Пожалуйста.... Расстояние между 2 городами 240 км. Половину пути электричка идёт без остановок, а остальной путь она про- ходит за 3ч. Вычесли скорость электрички. Есле не трудно чертежем написать пояснения. Спасибо!

Answer 1

Одна половина равна второй половине пути, потому что остановок не было
Значит если найдём в одной то во второй такое же значение
240/2=120 км половина пути
120:3=40км/ч скорость
Ответ 40км/ч

Answer 2

Calculation of Train Speed

To calculate the speed of the train, we need to determine the time it takes for the train to cover the remaining half of the distance, as well as the total time it takes for the train to cover the entire distance.

Given: - Distance between the two cities: 240 km - The train covers half of the distance without stopping - The remaining half of the distance is covered in 3 hours

Let's break down the calculation step by step:

1. Calculate the time it takes for the train to cover half of the distance: - Since the train covers half of the distance without stopping, the time taken for this part is not given explicitly. - Let's assume the time taken for this part is t hours.

2. Calculate the time it takes for the train to cover the entire distance: - The train covers the remaining half of the distance in 3 hours. - So, the total time taken for the entire distance is t + 3 hours.

3. Calculate the average speed of the train: - Average speed is calculated by dividing the total distance by the total time taken. - The total distance is 240 km. - The total time taken is t + 3 hours. - Therefore, the average speed of the train is 240 / (t + 3) km/h.

Unfortunately, the specific value of t is not provided in the question. Without this information, we cannot calculate the exact speed of the train.

If you have any additional information or if there is anything else I can assist you with, please let me know!