document.write( "Question 804018: On the first 6 quizzes of his math class, Luis got an average score of 78.
\n" ); document.write( "What does he need on the next quiz to have an overall average of 81?
\n" ); document.write( "

Algebra.Com's Answer #484571 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
(6*78+x)/7=81
\n" ); document.write( "x = 99
\n" ); document.write( "
\n" ); document.write( "
\n" );