SOLUTION: Two cars start at a given point and travel in the same direction at average speeds of 48 miles per hour and 56 miles per hour. How much time must elapse before the two cars are 12
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Question 192100: Two cars start at a given point and travel in the same direction at average speeds of 48 miles per hour and 56 miles per hour. How much time must elapse before the two cars are 12 miles apart? Answer by checkley75(3666) (Show Source):
You can put this solution on YOUR website! 56x=48x+12
56x-48x=12
8x=12
x=12/8
x=1.5 hours they will be 12 miles apart.
Proof:
56*1.5=48*1.5+12
84=72+12
84=84
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