Bill traveled 117 miles in 2.25 hours. What was his average speed?
Use the formula d = rt (distance = rate × time). Substitute 117 miles for d. Substitute 2.25 hours for t and solve for r.
117 = 2.25r
117/ 2.25= 2.25r /2.25
r= 52
The rate is 52 miles per hour.