document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=539310>Question 539310</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Manuel's quiz scores are 76, 81, and 77. What grade must he get on his fourth quiz to get an average of 80? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #353391 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=353391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Manuel's quiz scores are 76, 81, and 77. What grade must he get on his fourth quiz to get an average of 80?<BR>\n" );
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document.write( "76 + 81 + 77 = 234<BR>\n" );
document.write( "4*80 = 320<BR>\n" );
document.write( "320 - 234 = 86 needed<BR>\n" );
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document.write( "or,<BR>\n" );
document.write( "(76 + 81 + 77 + s)/4 = 80<BR>\n" );
document.write( "234 + s = 320<BR>\n" );
document.write( "s = 86<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );