SOLUTION: Jessie recently drove to visit her parents who live 552 miles away. On her way there her average speed was 20 miles per hour faster than on her way home (she ran into some bad weat

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Jessie recently drove to visit her parents who live 552 miles away. On her way there her average speed was 20 miles per hour faster than on her way home (she ran into some bad weat      Log On


   

Question 1148168: Jessie recently drove to visit her parents who live 552 miles away. On her way there her average speed was 20 miles per hour faster than on her way home (she ran into some bad weather). If Jessie spent a total of 23 hours driving, find the two rates.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
                SPEED        TIME         DISTANCE

GOTO           r+20         552%2F%28r%2B20%29        552

RETURN         r            552%2Fr             552

TOTAL                        23

552%2F%28r%2B20%29%2B552%2Fr=23

24%2F%28r%2B20%29%2B24%2Fr=1
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