document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=746637>Question 746637</A>: <I><SPAN STYLE=\"word-break: break-all;\"> John can paint the fence around his house in 15 hours, while his brother chad can do it in 18 hours.  If John paints for 7 hours alone and turns the rest over to chad, how long will it take chad to finish painting the fence? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454488 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=454488\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> John can paint the fence around his house in 15 hours, while his brother chad can do it in 18 hours.<BR>\n" );
document.write( " If John paints for 7 hours alone and turns the rest over to chad, how long will it take chad to finish painting the fence?<BR>\n" );
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document.write( "Let t = time for Chad to finish the fence<BR>\n" );
document.write( "Let the completed job = 1; (a painted fence)<BR>\n" );
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document.write( "A typical shared work equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F15 ALIGN=MIDDLE  ALT=\"7%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F18 ALIGN=MIDDLE  ALT=\"t%2F18\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "multiply eq by the least common multiple of 15 & 18; that's 90, results:<BR>\n" );
document.write( "6(7) + 5t = 90<BR>\n" );
document.write( "5t = 90 - 42<BR>\n" );
document.write( "t = 48/5<BR>\n" );
document.write( "t = 9.6 hrs for Chad to finish the job<BR>\n" );
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document.write( "Check this on a calc`: 7/15  +  9.6/18  = 1<BR>\n" );
document.write( " </SPAN>\n" );
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