document.write( "Question 99866: a student has test scoresof 80, 82, 94, 71. what score does the student need on the next test to produce an average score of 85? \n" ); document.write( "
Algebra.Com's Answer #72700 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! (80+82+94+71+X)/5=85 \n" ); document.write( "(327+X)/5=85 NOW CROSS MULTIPLY \n" ); document.write( "327+X=5*85 \n" ); document.write( "327+X=425 \n" ); document.write( "X=425-327 \n" ); document.write( "X=98 ANSWER FOR THE GRADE NEEDED ON THE FINAL TEST TO GET AN 85 AVERAGE. \n" ); document.write( "PROOF \n" ); document.write( "(80+82+94+71+98)/5=85 \n" ); document.write( "425/5=85 \n" ); document.write( "85=85 \n" ); document.write( " |