SOLUTION: An automobile traveling at a certain rate can go from one province to another in 9 hours. If the automobile traveled 12km per hour faster, the trip would require 2 hours less. What

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Question 987542: An automobile traveling at a certain rate can go from one province to another in 9 hours. If the automobile traveled 12km per hour faster, the trip would require 2 hours less. What is the distance between the 2 provinces?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
                   speed     time     distance
Normal speed        r        t         d         
Faster speed       r+k       t-h       d

system%28t=9%2Ck=12%2Ch=2%29


system%28rt=d%2C%28r%2Bk%29%28t-h%29=d%29
Solve for r and d.