SOLUTION: a hertz rental car traveling for six hours overtakes a hertz rental van that has been traveling for 7.5 hours. If the car is driving 15 mph faster than the van, how far away from

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Question 759413: a hertz rental car traveling for six hours overtakes a hertz rental van that has been traveling for 7.5 hours. If the car is driving 15 mph faster than the van, how far away from the hertz rental place are they
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
The car: r*7 miles
The van: (r+15)6 miles

Those are the distances when the van passes the car.
r%2A7=%28r%2B15%29%2A6
Solve for r and then the distance where they both matched can be found.

7r=6r%2B90
r=90
Back to the car expression for distance, for convenience,
90%2A7=630 miles from the Hertz rental place.