document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195722>Question 1195722</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The mean of a set of 10 numbers is 56. If the mean of the first nine numbers is 55, find the 10th number </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #828236 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=828236\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean = sum / number of elements.<BR>\n" );
document.write( "sum = mean * number of elements.<BR>\n" );
document.write( "the sum of the first 9 numbers is 9 * 55 = 495<BR>\n" );
document.write( "the sum of the 10 numbers is 10 * 56 = 560<BR>\n" );
document.write( "the difference = 560 - 495 = 65.<BR>\n" );
document.write( "that's the value of the 10th number.<BR>\n" );
document.write( "sum of 9 numbers = 495.<BR>\n" );
document.write( "the 10th number is 65.<BR>\n" );
document.write( "sum of 10 numbers = 495 + 65 = 560.<BR>\n" );
document.write( "495/9 = 55<BR>\n" );
document.write( "560/10 = 56<BR>\n" );
document.write( "this confirms the value of the 10th number is 65.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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