SOLUTION: Jamie recently drove to visit her parents who live 189 miles away. On her way there her average speed was 16 miles per hour faster than on her way home (she ran into some bad weath

Algebra ->  Rational-functions -> SOLUTION: Jamie recently drove to visit her parents who live 189 miles away. On her way there her average speed was 16 miles per hour faster than on her way home (she ran into some bad weath      Log On


   

Question 1157045: Jamie recently drove to visit her parents who live 189 miles away. On her way there her average speed was 16 miles per hour faster than on her way home (she ran into some bad weather). If Jamie spent a total of 6 hours driving, find the two rates.

Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
Finding expressions for both times and making their sum
189%2F%28r%2B16%29%2B189%2Fr=6
.
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r%5E2-47r-504=0
%28r-56%29%28r%2B9%29=0--------------------the speed back was 56 mph.