SOLUTION: A truck enters a highway driving 60 mph. A car enters the highway at the same place 1010 minutes later and drives 7575 mph in the same direction. From the time the car enters the&#

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Question 1079434: A truck enters a highway driving 60 mph. A car enters the highway at the same place 1010 minutes later and drives 7575 mph in the same direction. From the time the car enters the​ highway, how long will it take the car to pass the​ truck?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
A truck enters a highway driving 60 mph. A car enters the highway at the same place 1010 minutes later and drives 7575 mph in the same direction.


Ten minutes is 1%2F6 of an hour;
           SPEED        TIME              DISTANCE

TRUCK       60          t%2B1%2F6         60%28t%2B1%2F6%29

CAR         75           t             75t


Car passes truck when distances are equal.
60%28t%2B1%2F6%29=75t
Solve for time t in hours.