document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1024367>Question 1024367</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A mother is 20 years older then her daughter. A.  If the daughter is y years old, how old is the mother. Interms of y, how old was the daughter is 4 years ago?  Interms of y how old was the mother 4 years ago and four years ago the ratio of their ages was 7:3 find the percentage of the daughter.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #639841 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=639841\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let y = the daughter's present<BR>\n" );
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document.write( "A mother is 20 years older then her daughter.<BR>\n" );
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document.write( " A. If the daughter is y years old, how old is the mother.<BR>\n" );
document.write( " y + 20<BR>\n" );
document.write( " In terms of y, how old was the daughter is 4 years ago?<BR>\n" );
document.write( " y - 4<BR>\n" );
document.write( " In terms of y how old was the mother 4 years ago<BR>\n" );
document.write( "y + 20 - 4<BR>\n" );
document.write( "y + 16<BR>\n" );
document.write( " and four years ago the ratio of their ages was 7:3<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%2B16%29%2F%28y-4%29 ALIGN=MIDDLE  ALT=\"%28y%2B16%29%2F%28y-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F3 ALIGN=MIDDLE  ALT=\"7%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cross multiply<BR>\n" );
document.write( "7(y-4) = 3(y + 16) <BR>\n" );
document.write( "7y - 28 = 3y + 48<BR>\n" );
document.write( "7y - 3y = 48 + 28<BR>\n" );
document.write( "4y = 76<BR>\n" );
document.write( "y = 76/4<BR>\n" );
document.write( "y = 19 is daughters present age<BR>\n" );
document.write( "then<BR>\n" );
document.write( "19 + 20 = 39 is mom's age <BR>\n" );
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document.write( "  find the percentage of the daughter.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=19%2F39 ALIGN=MIDDLE  ALT=\"19%2F39\"   DISABLED_style= \"max-width:90%; height:auto;\" > * 100 = 48.7%  </SPAN>\n" );
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