SOLUTION: Car A is going 14 mi/hr faster than car b. Car A travels 400 mi, in the same time it takes car B to travel 330 mi. Find the speed of each car.
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Question 868374: Car A is going 14 mi/hr faster than car b. Car A travels 400 mi, in the same time it takes car B to travel 330 mi. Find the speed of each car.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Car B x mph - 330 miles
Car A x+ 14 mph - 400 miles
t=d/r
330 / x = 400 / ( x+ 14 )
Cross multiply
330 ( x 14 ) = 400 * x
330 x + 4620 = 400 x
400 x -330 x = 4620
70 x = 4620
/ 70
x = 66 Car B mph
80 Car A mph
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