document.write( "Question 671355: Leon must have made a mean score of 90 on his math quizzes to earn an A. So far, he has received grades of 88,85,91,92,94,81,86,98. What grade must he earn on his final quiz?
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #417373 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "In order to have a mean score of greater than or equal to X on Y equal weight tests, then you must have a total of greater than or equal to XY. You have a list of eight exams. Presumably the \"final quiz\" is the only other one that has to be taken, so there are a total of 9 quizzes. Add up the scores of the quizzes already taken and subtract from 9 times 90. The result will be the score required for the desired average.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "My calculator said it, I believe it, that settles it
\n" ); document.write( "
\"The

\n" ); document.write( " \n" ); document.write( "
\n" );