document.write( "Question 1059467: Alan has scored
\n" ); document.write( "78
\n" ); document.write( ",
\n" ); document.write( "93
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\n" ); document.write( "63
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\n" ); document.write( "81
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\n" ); document.write( "76
\n" ); document.write( " on his previous five tests. What score does he need on his next test so that his average (mean) is
\n" ); document.write( "79
\n" ); document.write( "?
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Algebra.Com's Answer #674500 by jorel555(1290)\"\" \"About 
You can put this solution on YOUR website!
So far, Alan has scored 78,93,63,81,&76 on his tests, giving him a grand total of 391 for 5 tests. To average 79 over 6 tests, he needs a grand total of 79x6, or 474 points. 474-391=83 points Alan needs to score to average a 79 over all his tests. ☺☺☺☺ \n" ); document.write( "
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