SOLUTION: Kevin drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took
8
hours. When Kevin drove home, there was no traffic and the trip only to
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Question 952847: Kevin drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took
8
hours. When Kevin drove home, there was no traffic and the trip only took
6
hours. If his average rate was
16
miles per hour faster on the trip home, how far away does Kevin live from the mountains?
Answer by josgarithmetic(39625) (Show Source): You can put this solution on YOUR website!
___________________rate____________time__________distance
GOTO________________r________________8___________d
BACK_______________r+16______________6___________d
Variables assigned as understood from data table and description.
Try solving purely in symbols, to solve for d.
Only TWO unknown variables: r and d.
___________________rate____________time__________distance
GOTO________________r________________g___________d
BACK_______________r+k_______________b___________d
Fact for uniform rates for travel, RT=D for rate, time, distance.
-
substitute.
Substitute the values known or given for b, g, k, and evaluate d.
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