document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=257749>Question 257749</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ann's age is seven tenths of Bill's age. In 4 years Ann's age will be eight-elevenths of Bills age. How old is Bill? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #189625 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=189625\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let a = Ann's present age<BR>\n" );
document.write( "Let b = Bill's age<BR>\n" );
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document.write( "Write an equation for each statement.<BR>\n" );
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document.write( "\"Ann's age is seven tenths of Bill's age.\"<BR>\n" );
document.write( "a = .7b<BR>\n" );
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document.write( "\"In 4 years Ann's age will be eight-elevenths of Bills age.\"<BR>\n" );
document.write( "a + 4 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F11 ALIGN=MIDDLE  ALT=\"8%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" >(b + 4)<BR>\n" );
document.write( "Multiply both sides by 11, get rid of the annoying denominator<BR>\n" );
document.write( "11(a + 4) = 8(b + 4)<BR>\n" );
document.write( "11a + 44 = 8b + 32<BR>\n" );
document.write( "11a = 8b + 32 - 44<BR>\n" );
document.write( "11a = 8b - 12<BR>\n" );
document.write( "Replace a with .7b<BR>\n" );
document.write( "11(.7b) = 8b - 12<BR>\n" );
document.write( "7.7b = 8b - 12<BR>\n" );
document.write( "7.7b - 8b = -12<BR>\n" );
document.write( "-.3b = -12<BR>\n" );
document.write( "b = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-12%29%2F%28-.3%29 ALIGN=MIDDLE  ALT=\"%28-12%29%2F%28-.3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b = +40 yrs old is Bill<BR>\n" );
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document.write( "Check solution:<BR>\n" );
document.write( "a = .7(40)<BR>\n" );
document.write( "a = 28 yrs<BR>\n" );
document.write( "\"In 4 years Ann's age will be eight-elevenths of Bills age.\"<BR>\n" );
document.write( "28 + 4 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F11 ALIGN=MIDDLE  ALT=\"8%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" >(40 + 4)<BR>\n" );
document.write( "32 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F11 ALIGN=MIDDLE  ALT=\"8%2F11\"   DISABLED_style= \"max-width:90%; height:auto;\" >*44<BR>\n" );
document.write( "32 = 8 * 4 </SPAN>\n" );
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