document.write( "Question 648777: You earned a 90 and an 82 on your first two essays
\n" ); document.write( " in English class. What score, represented by the variable s,
\n" ); document.write( " do you need to earn on your third essay to have an average of
\n" ); document.write( " 84 or greater?
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Algebra.Com's Answer #406799 by rfer(16322)\"\" \"About 
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(90+82+s)/3=84
\n" ); document.write( "(90+82+s=84*3
\n" ); document.write( "172+s=252
\n" ); document.write( "s=252-172
\n" ); document.write( "s=80 or more
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