It takes Tammy 45 minutes to ride her bike 5 miles. At this rate, how longwill it take her to ride 8 miles?

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  1. rate= 5mile/45min= 1mile/8 min

    8 miles= rate*time
    = 1mile/8min * time
    time= 64 min

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  2. 45/5 = 9 minutes per mile

    8 * 9 = ?

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  3. 72 minutes

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