SOLUTION: Chris and Leslie drove a total of 969 miles in 17.4 hours. Chris drove the first part of the trip and averaged 45 miles per hour. Leslie drove the remainder of the trip and average
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Question 879227: Chris and Leslie drove a total of 969 miles in 17.4 hours. Chris drove the first part of the trip and averaged 45 miles per hour. Leslie drove the remainder of the trip and averaged 65 miles per hour. For what length of the time did Chris drive? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! x/45 + (969-x)/65 = 17.4hrs |Multiplying thru by 2925 so as all denominators = 1
65x + 45(969-x) = 50895
x = 7290/20 = 364.5mi = 8.1 hr
