SOLUTION: A truck enters a highway driving at 60 mph. A car enters the highway at the same place 11 minutes later and drives 72 mph in the same direction. From the time the car enters the hi

Question 834032: A truck enters a highway driving at 60 mph. A car enters the highway at the same place 11 minutes later and drives 72 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(39618) (Show Source): You can put this solution on YOUR website!
The truck has been traveling on the highway for 11 minutes and the car travels on this highway for t minutes; when the two reach the same position, the truck had traveled for t+11 minutes.

____________speed____________time(hours)_______________distance
truck_______60_______________t+11/60__________________d
car_________72_______________t________________________d

That LOOKS like two variables as unknown, but you also will make TWO equations using these variables.

and and d is the same value in both equations.

miles; not quite a full mile.
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