document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1100820>Question 1100820</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A family consist of a mother, a father, and some children. The average age of the family is 20, the father is 48 years old, and the average age of the mother and children is 16.How many children are in the family? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #715353 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=715353\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A family consist of a mother, a father, and some children.<BR>\n" );
document.write( " The average age of the family is 20, the father is 48 years old, and the average age of the mother and children is 16.<BR>\n" );
document.write( "How many children are in the family? <BR>\n" );
document.write( ":<BR>\n" );
document.write( "let c = no. of children\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2848+%2B+16%28c%2B1%29%29%2F%28c%2B2%29+=+20 ALIGN=MIDDLE  ALT=\"%2848+%2B+16%28c%2B1%29%29%2F%28c%2B2%29+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "48 + 16c + 16 = 20(c+2)<BR>\n" );
document.write( "64 + 16c = 20c + 40<BR>\n" );
document.write( "64 - 40 = 20c - 16c<BR>\n" );
document.write( "24 = 4c<BR>\n" );
document.write( "c = 24/4<BR>\n" );
document.write( "c = 6 children in the family<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2848+%2B+16%287%29%29%2F8 ALIGN=MIDDLE  ALT=\"%2848+%2B+16%287%29%29%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 20<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2848+%2B+112%29%2F8 ALIGN=MIDDLE  ALT=\"%2848+%2B+112%29%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 20 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );