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document.write( "If I recieve an 85%, 88%, 87% and 75% on four math tests, what score would I need for the 5th test to recieve an overall grade of 83%
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Algebra.Com's Answer #444925 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! (85+88+87+75+x)/5=83 \n" ); document.write( "(335+x)/5=83 cross multiply. \n" ); document.write( "335+x=83*5 \n" ); document.write( "335+x=415 \n" ); document.write( "x=415-335 \n" ); document.write( "x=80 needed for the 5 th. test to have an 83 average. \n" ); document.write( " \n" ); document.write( " |