Question

Скорость вертолета в 5 раз больше скорости автомашины. Вертолет за 2 часа пролетел на 480 км больше, чем машина проехала за это же время. Найди скорость вертолета

Answer 1

Скорость автомашины - x
Скорость вертолёта - 5x

5x * 2 = x * 2 + 480
10x = 2x + 480
8x = 480
x = 60 км/ч
5x = 300 км/ч

Answer 2

скорость машины х км/ч, а вертолета 5х км/ч.

машина за 2 часа проехала 2х км, а вертолет 2*5х км=10х км, что на 480 км больше, чем проехала машина. значит,

10х=2х+480

8х=480

х=60

скорость машины 60км/ч, значит, скорость вертолета 5*60=300км/ч.

 

Answer 3

Calculation of Helicopter Speed

To find the speed of the helicopter, we can use the information provided in the question. Let's break down the given information:

- The speed of the helicopter is 5 times greater than the speed of the car. - The helicopter flew 480 km more than the car in a time period of 2 hours.

Let's denote the speed of the car as x km/h. According to the given information, the speed of the helicopter would be 5x km/h.

Now, let's calculate the distance traveled by the car and the helicopter in 2 hours:

- The distance traveled by the car in 2 hours would be 2x km. - The distance traveled by the helicopter in 2 hours would be 2(5x) km.

According to the question, the helicopter flew 480 km more than the car in this time period. Therefore, we can set up the following equation:

2(5x) - 2x = 480

Simplifying the equation:

10x - 2x = 480

8x = 480

Dividing both sides by 8:

x = 60

Therefore, the speed of the car is 60 km/h.

Since the speed of the helicopter is 5 times greater than the speed of the car, the speed of the helicopter would be:

5 * 60 = 300 km/h.

So, the speed of the helicopter is 300 km/h.