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Mathematics 15 Online
OpenStudy (anonymous):

Kyle left town driving east at 30 mph. Lisa left 5 hours later driving the same route at 45 mph. How many hours after Kyle left will Lisa to catch up to him? Round to the nearest tenth if necessary.

OpenStudy (anonymous):

30(x+5) = 45x 30x+150 = 45x 150=15x x=10, where x is the elapsed time in hours

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