document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=332570>Question 332570</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must she earn on the fourth test? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #238309 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=238309\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must she earn on the fourth test?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = score of fourth test<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(87+81+88+x)/4 = 87<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Multiplying both sides by 4:<BR>\n" );
document.write( "(87+81+88+x) = 348<BR>\n" );
document.write( "256+x = 348<BR>\n" );
document.write( "x = 348-256<BR>\n" );
document.write( "x = 92 </SPAN>\n" );
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