SOLUTION: Sue drives 24 miles to work and averages between 30-45 minutes. What is her average MPH?

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Question 825574: Sue drives 24 miles to work and averages between 30-45 minutes. What is her average MPH?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=d
r/2=24
r=48
3/4r=24
r/4=8
r=32
she averages between 32 and 48 mph