SOLUTION: To travel a given distance, the rate is inversely proportional to the time required. Tom noted that if he drove home at 100 kilometers per hour, the trip would take 5 hours. How ma

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Question 1202300: To travel a given distance, the rate is inversely proportional to the time required. Tom noted that if he drove home at 100 kilometers per hour, the trip would take 5 hours. How many hours would it take him to drive home if he drove at 125 kilometers per hour?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
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the rate is inversely proportional to the time required.
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r=k%2Ft



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drove home at 100 kilometers per hour, the trip would take 5 hours.
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rt=k
k=rt
k=100%2A5
k=500

r=500%2Ft------but you want to solve this for t for anwering the question.