document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=581203>Question 581203</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A girl is now one-fourth as old as her father, and in seven years she will be one-half as old as her father was twelve years ago. Find their present ages.\r<BR>\n" );
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document.write( "The father's present age is .<BR>\n" );
document.write( "The daughter's present age is . \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 #371614 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=371614\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let d = daughter's present age<BR>\n" );
document.write( "let f = father's present age<BR>\n" );
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document.write( "write an equation for each statement:<BR>\n" );
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document.write( "\"A girl is now one-fourth as old as her father,<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F4 ALIGN=MIDDLE  ALT=\"1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >f<BR>\n" );
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document.write( "f = 4d<BR>\n" );
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document.write( "\"in seven years she will be one-half as old as her father was twelve years ago.\"<BR>\n" );
document.write( "d + 7 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >(f-12)<BR>\n" );
document.write( "multiply both sides by 2<BR>\n" );
document.write( "2(d+7) = f - 12<BR>\n" );
document.write( "2d + 14 = f - 12<BR>\n" );
document.write( "2d = f - 12 - 14<BR>\n" );
document.write( "2d = f - 26<BR>\n" );
document.write( "From the 1st statement, replace f with 4d<BR>\n" );
document.write( "2d = 4d - 26<BR>\n" );
document.write( "26 = 4d - 2d <BR>\n" );
document.write( "26 = 2d<BR>\n" );
document.write( "d = 13 yrs is daughter's age<BR>\n" );
document.write( "then<BR>\n" );
document.write( "4(13) = 52 yrs is father's present age<BR>\n" );
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document.write( "Check this in the statement:<BR>\n" );
document.write( "\"in seven years she will be one-half as old as her father was twelve years ago.\"<BR>\n" );
document.write( "13 + 7 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >(52-12)<BR>\n" );
document.write( "20 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >(40)\r<BR>\n" );
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