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Rbt drove there at 55, back at 45; took 2hrs longer back  TOPIC_SOLVED

Robert drove to the shore at an average speed of 55 mph and returned home over the same route at the average speed of 45 mph. It took him 2 hours longer on the return trip. What was his average speed for the entire trip?
by mi11ertime
on Mon Sep 06, 2010 4:19 am
 
Forum: Advanced Algebra ("pre-calculus")
Topic: Rbt drove there at 55, back at 45; took 2hrs longer back
Replies: 1
Views: 1031

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