Question

Sharon is taking a bus from Baltimore, Maryland, to Washington D.C. If the distance is 40 miles and the estimated time of travel is 1 hour, what is the average rate at which the bus travels? (Hint: Use the formula d = rt .)

60 mph
30 mph
25 mph
40 mph

Answer 1

40mph. C'mon. It travels 40 miles in one hour, that's 40 miles per hour, your answer is 40

Answer 2

The bus travels at an average rate of 40 mph.

Explanation:

Given data

• Distance traveled (d): 40 miles

• Time elapsed (t): 1 hour

• Average rate at which the bus travels (r): to be found

We can find r using the following expression.

d = r × t

r = d/t = 40mi/1 h = 40mi/h = 40 mph

The bus travels at an average rate of 40 mph.