document.write( "Question 968817: Can someone please help me solve this problem. Karen's average score for two test is 90. What score must Karen earn on a third test to raise her average to 92? \n" ); document.write( "
Algebra.Com's Answer #591977 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! (90+90+X)3=92 \n" ); document.write( "(180+X)/3=92 \n" ); document.write( "180+X=3*92 \n" ); document.write( "180+X=276 \n" ); document.write( "X=276-180 \n" ); document.write( "X=96 ANS. FOR THE THIRD TEST SCORE. \n" ); document.write( "PROOF: \n" ); document.write( "(90+90+96)/3=92 \n" ); document.write( "276/3=92 \n" ); document.write( "276=3*92 \n" ); document.write( "276=276 \n" ); document.write( " |