Question

Помогите с задачкой, пожалуйста. Нужно только решение!Самолет пролетел 1440 км со скоростью 800 км/ч, а оставшиеся 510 км он летел со скоростью 850 км/ч. Сколько часов потратил самолет на весь путь?

Answer 1

Problem Analysis

To solve this problem, we need to find the total time taken by the plane to cover the entire distance. We are given two distances and their corresponding speeds. We can calculate the time taken for each leg of the journey and then add them together to find the total time.

Solution

Let's calculate the time taken for each leg of the journey:

- Distance covered at a speed of 800 km/h: 1440 km - Time taken = Distance / Speed = 1440 km / 800 km/h = 1.8 hours

- Distance covered at a speed of 850 km/h: 510 km - Time taken = Distance / Speed = 510 km / 850 km/h = 0.6 hours

Now, let's add the times taken for each leg to find the total time taken by the plane:

Total time taken = 1.8 hours + 0.6 hours = 2.4 hours

Therefore, the plane took 2.4 hours to cover the entire distance.

Answer

The plane took 2.4 hours to cover the entire distance.