SOLUTION: On a 5-hour trip, Thomas drove part of the time at 30 mi/h and the rest at 55mi/h. If he traveled a distance of 250 miles total, how much time did he spend driving at 55 mi/h?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: On a 5-hour trip, Thomas drove part of the time at 30 mi/h and the rest at 55mi/h. If he traveled a distance of 250 miles total, how much time did he spend driving at 55 mi/h?       Log On

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Question 368632: On a 5-hour trip, Thomas drove part of the time at 30 mi/h and the rest at 55mi/h. If he traveled a distance of 250 miles total, how much time did he spend driving at 55 mi/h?
Fucked up problem. I think there is more info needed to solve this problem.
Time: Who am I to determine the time spend driving? There is no evidence to say it is so. Why not 2h, or 3h or 30minutes?
Answer: 4 Hours , but i need to know how to solve it.

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(x)(55) + (5 - x)(30) = 250