document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234276>Question 234276</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem:\r<BR>\n" );
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document.write( "John's present age is three-fourths of Sally's present age. In five years, John's age will be four-fifths of Sarah's age at that time. What are the present ages of John and Sally?\r<BR>\n" );
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document.write( "----- Thank you =)<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 #172775 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=172775\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> John's age now=3x/4<BR>\n" );
document.write( "Sally's age now=x<BR>\n" );
document.write( "In 5 years John will be 3x/4+5<BR>\n" );
document.write( "Sally will be 4/5(x+5)<BR>\n" );
document.write( "3x/4+5=4/5(x+5)<BR>\n" );
document.write( "3x/4+5=(4x+20)/5<BR>\n" );
document.write( "(3x+4*5)/4=(4x+20)/5 crosss multiply.<BR>\n" );
document.write( "5(3x+20)=4(4x+20)<BR>\n" );
document.write( "15x+100=16x+80<BR>\n" );
document.write( "15x-16x=80-100<BR>\n" );
document.write( "-x=-20<BR>\n" );
document.write( "x=20 ans. for sally's age now.<BR>\n" );
document.write( "3/4*20=60/4=15 ans. for John's age now.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "3/4*20+5=4/5(20+5)<BR>\n" );
document.write( "15+5=4/5*25<BR>\n" );
document.write( "20=100/5<BR>\n" );
document.write( "20=20 </SPAN>\n" );
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