document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1147269>Question 1147269</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the average age of four sisters is 24. The average age of eldest three is 26, how old is the youngest sister? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #768588 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=768588\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let y = the youngest sister age<BR>\n" );
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document.write( "The average age of four sisters is 24.<BR>\n" );
document.write( "3s + y = 4(24)<BR>\n" );
document.write( "3s + y = 96 <BR>\n" );
document.write( "The average age of eldest three is 26,<BR>\n" );
document.write( "3s = 3(26)<BR>\n" );
document.write( "3s = 78<BR>\n" );
document.write( " how old is the youngest sister?<BR>\n" );
document.write( "3s + y = 96<BR>\n" );
document.write( "replace 3s with 78<BR>\n" );
document.write( "78 + y = 96<BR>\n" );
document.write( "y = 96 - 78<BR>\n" );
document.write( "y = 18 yrs is the youngest sister<BR>\n" );
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