SOLUTION: The speed r to drive a constant distance is inversely proportional to the time t. Shari drove from home to her vacation cottage in 6hrs at a rate of 35 miles per hour. Find the ra

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Question 433116: The speed r to drive a constant distance is inversely proportional to the time t. Shari drove from home to her vacation cottage in 6hrs at a rate of 35 miles per hour. Find the rate she needs to drive to get back home in 5 hrs.
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=d
6*35=d
6*5*7=5*r
divide by 5
6*7=r
42 mph =r