document.write( "Question 624917: If I have completed y assignments with an average score of z what score x do I need on the y+1 assignment in order to achieve an average score of a?
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Algebra.Com's Answer #393172 by Alan3354(69443)\"\" \"About 
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If I have completed y assignments with an average score of z what score x do I need on the y+1 assignment in order to achieve an average score of a?
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\n" ); document.write( "a*(y+1) = (y*z + Score)/(y+1)
\n" ); document.write( "\"Score+=+a%2A%28y%2B1%29%5E2+-+y%2Az\"
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