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Mathematics 21 Online
OpenStudy (anonymous):

Find the rate of change . you run 7 miles in one hour and 21 miles in 3 hours .

OpenStudy (agreene):

7 miles / 1 hour and 21 miles / 3 hours 7 miles/hour 7 miles/hour (21/3 = 7 ) so your rate of change in 0. because were running 7 miles/hour the whole time :)

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