Aldo drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 8 hours. When Aldo drove home, there was no traffic and the trip only took 5 hours. If his average rate was 21 miles per hour faster on the trip home, how far away does Aldo live from the mountains? Do not do any rounding.
Question
Answer:
8x = 5(x+21)8x = 5x +105
3x = 105
x = 105 /3
x = 35
8 x 35 = 280 miles away
solved
general
10 months ago
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