Chen rode his skateboard 3 and 3/4 miles in 3/4 of an hour what is his average speed in miles per hour
To find Chen's average speed in miles per hour, we need to divide the distance he traveled by the time it took him to travel that distance.
Distance = 3 3/4 miles = 15/4 miles
Time = 3/4 hour
Average speed = Distance / Time
Average speed = (15/4) / (3/4)
Average speed = (15/4) * (4/3)
Average speed = 15 / 3
Average speed = 5 miles per hour
Therefore, Chen's average speed was 5 miles per hour.