document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=939990>Question 939990</A>: <I><SPAN STYLE=\"word-break: break-all;\"> today, a father is 10 years older than twice his son's age. five years a go, the product of their ages was 350. how old is his son now today, a father is 10 years older than twice his son's age. five years a go, the product of their ages was 350. how old is his son now <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 #572821 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=572821\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> today, a father is 10 years older than twice his son's age. five years a go, the product of their ages was 350. how old is his son now <BR>\n" );
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document.write( "Equations::<BR>\n" );
document.write( "f = 2s+10<BR>\n" );
document.write( "(f-5)(s-5) = 350<BR>\n" );
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document.write( "Substitute for \"f\" and solve for \"s\"::<BR>\n" );
document.write( "(2s+5)(s-5) = 350<BR>\n" );
document.write( "2s^2 -5s -375 = 0<BR>\n" );
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document.write( "s = 15 yrs (son's age now)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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