Saturday, May 26, 2007

Problems Continued

Problem 4

Louise runs the first half of a race at 5 miles per hour. Then she picks up her pace and runs the last half of the race at 10 miles per hour. What is her average speed on the course?

4 comments:

conyu said...

Conyu-
My answer is 10+5=15 divided by 2 is 7.5

Unknown said...

her avarage is 7.5

Unknown said...

because 10 +5 =15/2=7.5

ARome said...

Louise's average speed is 7.5 mph (miles per hour). First, I add 5 and 10 and I got 15. Next, I divided 15 by two and I got 7.5 mph.


-Anthony