document.write( "Question 743520: My average for my past five math test is 84. What must I get for my sixth math test to increase my average to 86. \n" ); document.write( "
Algebra.Com's Answer #452916 by nyc_function(2741) You can put this solution on YOUR website! Let x = your next grade should be\r \n" ); document.write( "\n" ); document.write( "86 = (5(84) + x)/6\r \n" ); document.write( "\n" ); document.write( "86 = (420 + x)/6\r \n" ); document.write( "\n" ); document.write( "516 = 420 + x\r \n" ); document.write( "\n" ); document.write( "516 - 420 = x\r \n" ); document.write( "\n" ); document.write( "96 = x \n" ); document.write( " |