document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=622177>Question 622177</A>: <I><SPAN STYLE=\"word-break: break-all;\"> it takes shawn 18 hours to paint a house.  karen can paint the house in 12 hours.  how long will it take shawn and karen working together to paint the house? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #391157 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=391157\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> it takes shawn 18 hours to paint a house.  karen can paint the house in 12 hours.  how long will it take shawn and karen working together to paint the house?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = time (hours) it takes together<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x(1/18 + 1/12) = 1<BR>\n" );
document.write( "multiplying both sides by (18)(12):<BR>\n" );
document.write( "x(12 + 18) = (18)(12)<BR>\n" );
document.write( "x(30) = 216<BR>\n" );
document.write( "x = 216/30<BR>\n" );
document.write( "x = 7.2 hours<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x = 7 hours and 12 minutes\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );