SOLUTION: Two cars started from the same point but travelled in opposite directions. The faster car travelled 15 kilometres faster than the slower car. After five hours the 2 cars were 575 k

Algebra ->  Linear-equations -> SOLUTION: Two cars started from the same point but travelled in opposite directions. The faster car travelled 15 kilometres faster than the slower car. After five hours the 2 cars were 575 k      Log On


   



Question 1134704: Two cars started from the same point but travelled in opposite directions. The faster car travelled 15 kilometres faster than the slower car. After five hours the 2 cars were 575 kilometres apart. How many kilometres per hour did each car travel?
Found 2 solutions by Boreal, Alan3354:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
cars travel x and x+15 km/hr
Their combined speed is 2x+15 km/hr and in 5 hours go 575 km
so 10x+75=575
10x=500
x=50 km / h and x+15 is 65 km / h

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
travelled 15 kilometres faster
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15 kilometres is distance, not speed.