Question

Баба яга летела на ступе 3 часа со скоростью 25 км/ч и 4 часа со скоростью 32 км/ч. найди среднюю скорость ступу на всём пути.

Answer 1

3+4=7 ч -всего времени

3*25=75км - первая часть пути

4*32=128 км - вторая часть пути

(65+128)/7=29км/ч - средняя скорость

Ответ. 29 км/ч

Answer 2

Calculation of Average Speed

To find the average speed of Baba Yaga on the entire journey, we can use the formula:

Average Speed = Total Distance / Total Time

Let's calculate the total distance and total time first.

Given information: - Baba Yaga flew for 3 hours at a speed of 25 km/h. - Baba Yaga flew for 4 hours at a speed of 32 km/h.

To calculate the total distance, we can add the distances traveled at each speed: - Distance traveled at 25 km/h = 25 km/h * 3 hours = 75 km - Distance traveled at 32 km/h = 32 km/h * 4 hours = 128 km

Therefore, the total distance traveled is 75 km + 128 km = 203 km.

To calculate the total time, we can add the times spent at each speed: - Time spent at 25 km/h = 3 hours - Time spent at 32 km/h = 4 hours

Therefore, the total time spent is 3 hours + 4 hours = 7 hours.

Now we can calculate the average speed: - Average Speed = Total Distance / Total Time - Average Speed = 203 km / 7 hours

The average speed of Baba Yaga on the entire journey is approximately 29 km/h.