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

Х(км/ч)- скорость автомашины
5х(км/ч)- скорость вертолета
т.к. вертолет за 2 часа пролетел на 480 км больше, чем машина проехала за это же время, то
5х*2-х*2=480            или  (5х-х)*2=480
10х-2х=480
8х=480
х=480:8
х=60(км/ч)- скорость автомашины
60*5=300(км/ч)- скорость вертолета

Answer 2

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 faster than the speed of the car. - The helicopter flew 480 km more than the distance covered by the car in the same amount of time. - The helicopter flew for 2 hours.

To calculate the speed of the helicopter, we can follow these steps:

1. Let's assume the speed of the car is x km/h. 2. Since the speed of the helicopter is 5 times faster than the car, the speed of the helicopter is 5x km/h. 3. The distance covered by the car in 2 hours is 2x km. 4. The distance covered by the helicopter in 2 hours is 2x + 480 km.

Now, we can set up an equation to solve for the speed of the helicopter:

2x + 480 = 5x

Let's solve this equation to find the value of x, which represents the speed of the car:

2x + 480 = 5x

480 = 5x - 2x

480 = 3x

x = 480 / 3

x = 160

Therefore, the speed of the car is 160 km/h.

Now, let's calculate the speed of the helicopter:

Speed of helicopter = 5 * Speed of car

Speed of helicopter = 5 * 160

Speed of helicopter = 800 km/h

So, the speed of the helicopter is 800 km/h.