SOLUTION: two cars leave the same city at the same time. One traveling 5 miles faster than the other. after 3 hours both two cars are 393 miles apart. Find the speed of both cars.

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Question 876942: two cars leave the same city at the same time. One traveling 5 miles faster than the other. after 3 hours both two cars are 393 miles apart. Find the speed of both cars.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
You have a description for speeds but no sense of direction.

r%2A3%2B%28r%2B5%29%2A3=393
3r%2B3r%2B5=393
6r=393-5
6r=388
r=64%262%2F3 mph, the slower car.


%28r%2B5%29%2A3-r%2A3=393
3r%2B15-3r=393
15=393, nonsense.

The cars could be going in opposite directions.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

two cars leave the same city at the same time. One traveling 5 miles faster than the other. after 3 hours both two cars are 393 miles apart. Find the speed of both cars.


If this is all to the problem, then going in opposite directions, slower car's speed would be highlight_green%2863%29 mph

You should be able to find the faster car's speed.

You can do the check!! 



If you need a complete and detailed solution, let me know!!



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