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July 23, 2014

July 23, 2014

Posted by **Courtney** on Monday, November 19, 2007 at 11:42pm.

- College Algebra -
**Reiny**, Tuesday, November 20, 2007 at 12:40amAverage speed = total distance traveled/total time taken

time for first leg of trip =200/55 hrs

time for second leg of trip = 200/40 hours

so average speed = 400/(200/55 + 200/40)

=46.3 mph

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