document.write( "Question 726994: \r
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\n" ); document.write( "\n" ); 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)\"\" \"About 
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(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.
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