Question

Первые 3 часа конь бежал со скоростью 15 км/ч,а следующие 2 часа со скоростью 10км/ч.чему равна средняя скорость коня.

Answer 1

3*15= 45 км за 3 часа
2*10=20 км за 2 часа
45+20=65 км всего
3+2= 5 часов всего
65:5 =13 км/ч средняя скорость

Answer 2

Calculation of Average Speed

To calculate the average speed of the horse, we need to find the total distance traveled and the total time taken.

The horse ran at a speed of 15 km/h for the first 3 hours, covering a distance of 15 km/h * 3 h = 45 km

Then, the horse ran at a speed of 10 km/h for the next 2 hours, covering a distance of 10 km/h * 2 h = 20 km

Therefore, the total distance covered by the horse is 45 km + 20 km = 65 km.

The total time taken by the horse is 3 hours + 2 hours = 5 hours.

To find the average speed, we divide the total distance by the total time:

Average speed = Total distance / Total time = 65 km / 5 h = 13 km/h.

So, the average speed of the horse is 13 km/h.

Please let me know if there's anything else I can help you with!