Respuesta :
Answer: The average speed of the skier is 10 km/hr.
Explanation:
Average speed is defined as the ratio of total distance traveled to the total time taken.
Mathematically,
[tex]\text{Average speed}=\frac{\text{Total distance}}{\text{Total time taken}}[/tex]
We are given:
Total distance traveled = 7.5 km
Total time taken = 45 min = [tex]45min\times \frac{1hr}{60min}=0.75hr[/tex] (Conversion factor: 1 hr = 60 min)
Putting values in above equation, we get:
[tex]\text{Average speed of skier}=\frac{7.5km}{0.75hr}=10km/hr[/tex]
Hence, the average speed of the skier is 10 km/hr.
