Question

самолёт летел до посадки 4ч и пролетел2520км после этого он пролетел к месту назначению ещё 2700км за 5ч. на сколько уменьшилась скорость самолёта?​

Answer 1

Ответ: на 2520/4-2700/5=90 км/час. Всё просто.

Пошаговое объяснение:

Answer 2

Calculation of the Speed Reduction

To calculate the reduction in speed of the airplane, we need to determine the initial speed and the final speed.

Given information: - The airplane flew for 4 hours before landing and covered a distance of 2520 km. - After landing, the airplane flew for an additional 5 hours and covered a distance of 2700 km.

To find the initial speed, we divide the distance covered before landing by the time taken: Initial speed = Distance before landing / Time taken before landing

To find the final speed, we divide the distance covered after landing by the time taken after landing: Final speed = Distance after landing / Time taken after landing

The reduction in speed is the difference between the initial and final speeds: Speed reduction = Initial speed - Final speed

Let's calculate the values:

Step 1: Calculate the initial speed: Initial speed = 2520 km / 4 hours = 630 km/h

Step 2: Calculate the final speed: Final speed = 2700 km / 5 hours = 540 km/h

Step 3: Calculate the speed reduction: Speed reduction = 630 km/h - 540 km/h = 90 km/h

Therefore, the speed of the airplane reduced by 90 km/h.