Question

The formula d= rt gives the distance traveled in time t at rate r. A bicyclist rides for 1.5 hours and travels 25 miles. what is the average rate of speed?

A. 26.5 miles per hour
B. 16.7 miles per hour
C. 23.5 miles per hour
D. 37.5 miles per hour

Answer 1

16.7 miles per hour
This is because d=rt so r=d/t
25/1.5 = 16.7

Answer 2

Using then given formula replace the letters with the given information.

25 miles = r x 1.5 hours

To find r divide both sides by 1.5:

R = 25/1.5

R = 16.7 miles per hour

The answer would be B.