Question

А) Швидкість літака 12 км/хв. Вирази його швидкість в кілометрах за зодину. б) Поїзд їхав зі швидкітю 1200 м/хв. Вирази швидкість поїзда в кілометрах за годину.

Answer 1

Швидкість літака 720 км/год ( 12 × 60 = 720 )
Швидкість поїзда 72 км/год ( 1,2 × 60 = 72 )

Answer 2

Calculating Speed Conversions

To convert the speed of the airplane from kilometers per minute to kilometers per hour, we can use the following formula:

Speed in kilometers per hour = Speed in kilometers per minute * 60

Given that the speed of the airplane is 12 km/min, we can calculate the speed in kilometers per hour:

Speed in kilometers per hour = 12 km/min * 60 = 720 km/h [[1]]

So, the speed of the airplane is 720 kilometers per hour.

Next, let's convert the speed of the train from meters per minute to kilometers per hour.

Converting Train Speed

To convert the speed of the train from meters per minute to kilometers per hour, we can use the following formula:

Speed in kilometers per hour = Speed in meters per minute * 60 * 0.001

Given that the speed of the train is 1200 m/min, we can calculate the speed in kilometers per hour:

Speed in kilometers per hour = 1200 m/min * 60 * 0.001 = 72 km/h [[2]]

So, the speed of the train is 72 kilometers per hour.