SOLUTION: A car went 175 mph in 3 hours one way and 4.5 hours on the way back. What is the average miles?

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Question 669835: A car went 175 mph in 3 hours one way and 4.5 hours on the way back. What is the average miles?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A car went 175 mph in 3 hours one way and 4.5 hours on the way back.
What is the average speed?
:
let a = the average speed for the round trip; speed = dist/time
:
a = 2%28175%29%2F%28%283%2B4.5%29%29 = 350%2F7.5 = 461%2F3 mph