document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=465564>Question 465564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> . Simple question but big one on average age.sth like a, b, c weighted separately 1st a, b, c ,then a& b, then b &c ,then c & a at last abc, the last weight was 167,then what will be the average weight of the 7 reading? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319663 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=319663\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a,b,c combined weigh 167, we can find the average weight of the seven readings. Note that we are trying to find\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE Avg = \frac {a + b + c + (a+b) + (b+c) + (c+a) + (a+b+c)}{7}\">\r<BR>\n" );
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document.write( "We can collect like terms in the numerator:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE Avg = \frac{4a + 4b + 4c}{7} = \frac{4(a+b+c)}{7} = \frac{4(167)}{7} \approx 95.43\"> </SPAN>\n" );
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