document.write( "Question 694022: maurice has score of 88,90, and 80 on three test.what score must he make in his next test to have a mean score of exactly 85? \n" ); document.write( "
Algebra.Com's Answer #427696 by rfer(16322)\"\" \"About 
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(88+90+80+x)/4=85
\n" ); document.write( "258+x=85*4
\n" ); document.write( "x=340-258
\n" ); document.write( "x=82
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