document.write( "Question 654009: Ken received grades of 90,88,and 75 on three tests. What grade must he receive on the next test
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document.write( "so that his average for these four tests is 85? \n" );
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Algebra.Com's Answer #408581 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! (90+88+75+X)/4=85 \n" ); document.write( "(253+X)/4=85 CROSS MULTIPLY. \n" ); document.write( "253+X=4*85 \n" ); document.write( "253+X=340 \n" ); document.write( "X=340-253 \n" ); document.write( "X=87 ANS. FOR THE FINAL TEST GRADE. \n" ); document.write( " \n" ); document.write( " |