Chn rode his skateboard 3 3/4 miles in 3/4 of an hour. What was his average speed in miles per hour?
To find the average speed, we divide the total distance by the total time.
Total distance = 3 3/4 miles = 15/4 miles
Total time = 3/4 hours
Average speed = Total distance / Total time
= (15/4) / (3/4)
= 15 / 3
= 5 miles per hour
Therefore, Chan's average speed was 5 miles per hour.