SOLUTION: Two cars start from the same point and travel on a straight course for 2 hours in opposite directions. They are 208 miles apart from eachother. If one car traveled, on average 8mph

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Question 469510: Two cars start from the same point and travel on a straight course for 2 hours in opposite directions. They are 208 miles apart from eachother. If one car traveled, on average 8mph faster than the other car, what was the average speed of each car for the 2-hour trip? (steps please)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

one car traveled, on average 8mph faster than the other car

Let x and (x + 8mph) represent the respective speeds of these cars

Question states*** Note:  D = r*t  OR t = D/r

   2x + 2(x+8) = 208

Solving for x

    4x = 192

      x = 48mph,  the faster car is traveling at 56mph  (44mph + 8mp)

CHECKING our Answer***

  96mi + 112m = 208mi