document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=977912>Question 977912</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the mean of six numbers is 10. When another number is added the mean changes to 9. What number is added? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #599415 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=599415\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "If the mean of 6 numbers is 10<BR>\n" );
document.write( "then the total was 6 x 10 = 60<BR>\n" );
document.write( "When another number is added<BR>\n" );
document.write( "then this totals 7 numbers<BR>\n" );
document.write( "If the new mean is 9 then the new<BR>\n" );
document.write( "total = 63<BR>\n" );
document.write( "New total - Old total<BR>\n" );
document.write( "63 - 60 = 3<BR>\n" );
document.write( "Therefore 3 must have been <BR>\n" );
document.write( "the number added.<BR>\n" );
document.write( "Hope this helps:-) </SPAN>\n" );
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