Answer: The skier's average speed is 10 kilometers per hour.
Explanation: To find the skier's average speed, divide the total distance traveled by the time taken:
Given:
Distance = 7.5 km
Time = 45 min
To convert minutes to hours, divide by 60:
45 minutes÷60=0.75 hours45 minutes÷60=0.75 hours
Average Speed = Distance / Time
Average Speed=7.5 km0.75 hoursAverage Speed=0.75 hours7.5 km
Average Speed=10 km/hAverage Speed=10 km/h
So, the skier's average speed is 10 kilometers per hour.
Hope this helps!^^ <33