Difference between revisions of "2004 AMC 8 Problems/Problem 6"
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Revision as of 00:42, 12 March 2012
Problem
After Sally takes shots, she has made of her shots. After she takes more shots, she raises her percentage to . How many of the last shots did she make?
Solution
Sally made shots originally. Letting be the number of shots she made, we have . Solving for gives us