document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=679282>Question 679282</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if it takes a crew 8 hours to finish cleaning the auditorium if the second group help it takes 3.5 hours. how long would it take for the second group alone to clean the auditorium. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #421910 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=421910\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/8+1/x=1/3.5<BR>\n" );
document.write( "1/x=1/3.5-1/8<BR>\n" );
document.write( "1/x=(8-3.5)/3.5*8<BR>\n" );
document.write( "1/x=4.5/28 cross multiply.<BR>\n" );
document.write( ".5x=28<BR>\n" );
document.write( "x=28/.5<BR>\n" );
document.write( "x=6.22 hours for the second team working alone.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "1/8+1/6.2=1/3.5<BR>\n" );
document.write( "(6.2+8)/8*6.2=1/3.5<BR>\n" );
document.write( "14.2/49.6=1/3.5<BR>\n" );
document.write( "49.6=3.5*14.2<BR>\n" );
document.write( "49.6=49.7 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );