SOLUTION: Melissa drove to the mountains last weekend. There was heavy traffic on the way there and the trip took 8 hours. When Melissa drove home, there was no traffic and the trip only too

Question 1131014: Melissa drove to the mountains last weekend. There was heavy traffic on the way there and the trip took 8 hours. When Melissa drove home, there was no traffic and the trip only took 5 hours. If her average rate was 21 miles per hour faster on the trip home, how far away does Melissa live from the mountains?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!

              SPEED        TIME       DISTANCE

GOING         r             8         d
 
RETURN        r+21          5         d

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