SOLUTION: Jose left the White House and drove toward the recycling plant at an average speed of 40 km/h. Rob left some time later driving in the same direction at an average speed of 48 km/h

Question 512129: Jose left the White House and drove toward the recycling plant at an average speed of 40 km/h. Rob left some time later driving in the same direction at an average speed of 48 km/h. After driving for five hours Rob caught up with Jose. How long did Jose drive before Rob caught up?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Jose's head start in km
Let = time between Jose's leaving and Rob's leaving
After Rob leaves, Jose travels km
During the same time, Rob travels km

km
Jose drove for , or 1 hour until Rob left
In all, Jose drove for hours
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check answer:
Rob's equation:

Jose's equation:

OK
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