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as long as her speed was a constant, which according to this question she did, her speed would be about 5 mph(miles per hour)
marissa275019
Sherry traveled 5 miles every hour. You just make 20 miles and 4 hours into a fraction, then you simplify. 20 divided by 4=5, then you do 4 divided by 4=1. the 5 representing miles and 1 representing hours.

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