Mrs. Simpson drove 105 miles in 2 1/2 hours. What was Mrs. Simpson's average speed in miles per hour?

Question

Mathematics

Arjun Johnson

4 December, 11:45

Mrs. Simpson drove 105 miles in 2 1/2 hours. What was Mrs. Simpson's average speed in miles per hour?

+4

Answers (2)

Know the Answer?

Gary Avery · Answer 1

105 m = 2.5 h

x miles = 1 hour

You cross multiply since it's a proportion:

2.5 * x

105 * 1

=

2.5x = 105

Then you divide everything by 2.5

The answer is 42

Lamar Haney · Answer 2

The answer is 42. You get this when you divide 105 by 2 1/2