Chen rode his skateboard 3 3/4 miles in 3/4 of an hour. What was his average speed in miles per hour?
__ miles per hour
Chen's average speed in miles per hour can be calculated by dividing the total distance traveled (3 3/4 miles) by the total time taken (3/4 hour).
3 3/4 ÷ 3/4 = 3.75 ÷ 0.75 = 5
Therefore, Chen's average speed was 5 miles per hour.