SOLUTION: Two cars leave Rochester at noon, one traveling north and the other traveling south. The northbound car travels at an average rate of 38 mph, and the southbound car travels 4 hours

Algebra ->  Graphs -> SOLUTION: Two cars leave Rochester at noon, one traveling north and the other traveling south. The northbound car travels at an average rate of 38 mph, and the southbound car travels 4 hours      Log On


   

Question 1046930: Two cars leave Rochester at noon, one traveling north and the other traveling south. The northbound car travels at an average rate of 38 mph, and the southbound car travels 4 hours longer than the northbound car before they reach their destinations. The final destinations of the two cars are 334 miles apart. How long did each car travel?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +d+ = the distance in miles traveled
by the northbound car
Let +t+ = time in hrs spent traveling by
the northbound car
Let +s+ = speed in mi/hr of southbound car
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Equation for northbound car:
(1) +d+=+38t+
Equation for southbound car:
(2) +334+-+d+=+s%2A%28+t+%2B+4+%29+
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This is 2 equations with 3 unknowns, which
can't be directly solved.
Are you missing some information?