SOLUTION: Phil needs to practice free throws 7/10 of an hour each day. If he already practiced 3/10 of an hour today. How much longer does he need to practice?

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Question 110638: Phil needs to practice free throws 7/10 of an hour each day. If he already practiced 3/10 of an hour today. How much longer does he need to practice?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
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