document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=853819>Question 853819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i got a 100 on my first test. I got 77 score on my second test. what will I need on my third test to average an 80 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #514252 by </B><A HREF=/tutors/aboutme.mpl?userid=LinnW><B>LinnW(1048)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=LinnW><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=LinnW><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=514252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sum of the test scores divided by the number of tests gives<BR>\n" );
document.write( "the average.<BR>\n" );
document.write( "(100 + 77 + x)/3 = 80<BR>\n" );
document.write( "(177 + x)/3 = 80<BR>\n" );
document.write( "multiply each side by 3<BR>\n" );
document.write( "177 + x = 240<BR>\n" );
document.write( "add -177 to each side<BR>\n" );
document.write( " x = 240 - 177<BR>\n" );
document.write( " x = 63<BR>\n" );
document.write( " </SPAN>\n" );
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