Question

1)Мотоциклист за первые 10 минут движения проехал путь 5 км, а за следующие 20 минут - 13 км. Какова средняя скорость мотоциклиста на всем пути?

Answer 1

Объяснение:

10+20= 30

5+13=18

18:30=0.6 км/мин.

Answer 2

Calculation of Average Speed

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

The motorcyclist traveled 5 km in the first 10 minutes and 13 km in the next 20 minutes.

To find the total distance, we add the distances traveled in the two time intervals: 5 km + 13 km = 18 km.

To find the total time, we add the time taken in the two intervals: 10 minutes + 20 minutes = 30 minutes.

Now, we can calculate the average speed using the formula:

Average Speed = Total Distance / Total Time

Substituting the values, we get:

Average Speed = 18 km / 30 minutes

To convert the time to hours, we divide by 60:

Average Speed = 18 km / (30 minutes / 60 minutes per hour)

Simplifying the expression:

Average Speed = 18 km / 0.5 hours

Finally, we calculate the average speed:

Average Speed = 36 km/h

Therefore, the average speed of the motorcyclist for the entire journey is 36 km/h.