document.write( "Question 796229: If my score is 75 out of 100 what score do I need to maintain at least an average of 81? \n" ); document.write( "
Algebra.Com's Answer #481304 by psbhowmick(878)\"\" \"About 
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I assume that you are asking for what score do you need out of next 100 so as to get an average of 81.\r
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\n" ); document.write( "\n" ); document.write( "Suppose that you need to score x out of 100 to have an overall average of 81.\r
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\n" ); document.write( "\n" ); document.write( "So your overall average is calculated as\r
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\n" ); document.write( "\n" ); document.write( "\"%2875%2Bx%29%2F2=81\"
\n" ); document.write( "\"x=162-75=87\"\r
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\n" ); document.write( "\n" ); document.write( "So you need to score 87.
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