SOLUTION: Carlos and Maria drove a total of 331 miles in 6 hours. Carlos drove the first part of the trip and averaged 51 mph. Maria drove the remainder of the trip and averaged 56 mph. For

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Question 283405: Carlos and Maria drove a total of 331 miles in 6 hours. Carlos drove the first part of the trip and averaged 51 mph. Maria drove the remainder of the trip and averaged 56 mph. For how many hours did Maria drive.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
51(6-x)+56x=331
6-x=1 Carlos drove one hour
x=5 Maria drove 5 hours