document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=678372>Question 678372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Marisa can shovel snow from her driveway in 40 min. Jim can do the same job in 30 min. How long would it take both to shovel the driveway together. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #421454 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=421454\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/40+1/30=1/x<BR>\n" );
document.write( "(30+40)/30*40=1/x<BR>\n" );
document.write( "70/1200=1/x<BR>\n" );
document.write( "70x=1200<BR>\n" );
document.write( "x=1200/70<BR>\n" );
document.write( "x=17.14 hours. </SPAN>\n" );
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