SOLUTION: Two cars traveled in oppostie directions from the same starting point. The rate of one car was 10km /h faster than the rate of the other car. After 4 hours the cars were 46okm apar

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Question 93049: Two cars traveled in oppostie directions from the same starting point. The rate of one car was 10km /h faster than the rate of the other car. After 4 hours the cars were 46okm apart. Find each car's rate.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Two cars traveled in opposite directions from the same starting point. The rate of one car was 10km /h faster than the rate of the other car. After 4 hours the cars were 46okm apart. Find each car's rate.
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1st car DATA:
Rate = x kph ; Time = 4 hrs ; distance =rt =4x km
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2nd car DATA:
Rate = x+10 kph ; Time = 4 hrs. ; distance = rt = 4(x+10)= 4x+40 km
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EQUATION:
distance + distance = 460 km
4x + 4x+40 = 460
8x = 420
x = 52.5 kph (speed of the 1st car)
x+10 = 62.5 kph ( speed of the 2nd car)
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Cheers,
Stan H.