document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511>Question 511</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student has grades on three examinations of 76, 80, and 72. What<BR>\n" );
document.write( "must the student earn on a fourth examination in order to have an<BR>\n" );
document.write( "average of at least 80?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #180 by </B><A HREF=/tutors/aboutme.mpl?userid=ichudov><B>ichudov(507)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ichudov><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=ichudov><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=180\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the average of four grades is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%2876%2B80%2B72%2Bfourth_grade%29%2F4+ ALIGN=MIDDLE  ALT=\"+%2876%2B80%2B72%2Bfourth_grade%29%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" >. If it is 80, we have a nice equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%2876%2B80%2B72%2Bfourth_grade%29%2F4+=+80+ ALIGN=MIDDLE  ALT=\"+%2876%2B80%2B72%2Bfourth_grade%29%2F4+=+80+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+76%2B80%2B72%2Bfourth_grade+=+320 ALIGN=MIDDLE  ALT=\"+76%2B80%2B72%2Bfourth_grade+=+320\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Solve it. </SPAN>\n" );
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