SOLUTION: Dan left the hospital and drove toward the train station at an average speed of 30 mph. Micaela left some time later driving in the same direction at an average speed of 75 mph. Af

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Dan left the hospital and drove toward the train station at an average speed of 30 mph. Micaela left some time later driving in the same direction at an average speed of 75 mph. Af      Log On


   

Question 761638: Dan left the hospital and drove toward the train station at an average speed of 30 mph. Micaela left some time later driving in the same direction at an average speed of 75 mph. After driving for two hours micaela caught up with Dan. Find the number of hours Dan drove before Micaela caught up .
Answer by lwsshak3(11628) About Me  (Show Source):
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Dan left the hospital and drove toward the train station at an average speed of 30 mph. Micaela left some time later driving in the same direction at an average speed of 75 mph. After driving for two hours micaela caught up with Dan. Find the number of hours Dan drove before Micaela caught up .
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let x=Time Dan drove before Micaela caught up.
Distance=75*2=150
Distance=travel time*speed
30x=150
x=5
Time Dan drove before Micaela caught up.=5 hours