document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=660885>Question 660885</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I can shovel a driveway in 45 minutes; my brother can shovel the driveway in 36 minutes. If we work together, how long will it take?\r<BR>\n" );
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document.write( "My answer: 44.4 minutes Is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #411387 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=411387\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  I can shovel a driveway in 45 minutes; my brother can shovel the driveway in 36 minutes. If we work together, how long will it take? <BR>\n" );
document.write( "My answer: 44.4 minutes Is this correct?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Your rate: 1/45 job/min<BR>\n" );
document.write( "Bro's rate: 1/36 job/min<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Together rate: 1/x job/min<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/45 + 1/36 = 1/x<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "36x + 45x = 36*45<BR>\n" );
document.write( "81x = 36*45<BR>\n" );
document.write( "x = 4*5<BR>\n" );
document.write( "x = 20 minutes (time to do the job together))<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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