document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=766793>Question 766793</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a father'age is twice his daughter's age but 16 years ago the father's age was 4 times his daughter's age. Calculate their ages.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #467213 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=467213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a father'age is twice his daughter's age but 16 years ago the father's age was 4 times his daughter's age. Calculate their ages. <BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "f = 2d<BR>\n" );
document.write( "f-16 = 4(d-16)<BR>\n" );
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document.write( "Substitute for \"f\" andsolve for \"d\":<BR>\n" );
document.write( "2d-16 = 4d-64<BR>\n" );
document.write( "2d = 48<BR>\n" );
document.write( "d = 24 (daughter's age now)<BR>\n" );
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document.write( "Solve for \"f\":<BR>\n" );
document.write( "f = 2d<BR>\n" );
document.write( "f = 2*24 = 48 (father's age now)<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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