document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=845176>Question 845176</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello could you please help me work out this word sum:2 engineers build robots for a company. Engineer A builds 10 robots in 6 hours while Engineer B builds 10 robots in 4 hours how long will it take them to build 10 robots it they work together </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #509170 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=509170\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Add their rates of working to get<BR>\n" );
document.write( "their rate working together<BR>\n" );
document.write( "A's rate:<BR>\n" );
document.write( "( 10 robots ) / ( 6 hrs )<BR>\n" );
document.write( "B's rate:<BR>\n" );
document.write( "( 10 robots ) / ( 4 hrs )<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the time in hours for them<BR>\n" );
document.write( "to build 10 robots working together<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10+%2F+6+%2B+10+%2F+4+=+10+%2F+t+ ALIGN=MIDDLE  ALT=\"+10+%2F+6+%2B+10+%2F+4+=+10+%2F+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10+ ALIGN=MIDDLE  ALT=\"+10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F6+%2B+1%2F4+=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+1%2F6+%2B+1%2F4+=+1%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12t+ ALIGN=MIDDLE  ALT=\"+12t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2t+%2B+3t+=+12+ ALIGN=MIDDLE  ALT=\"+2t+%2B+3t+=+12+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5t+=+12+ ALIGN=MIDDLE  ALT=\"+5t+=+12+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+2.4+ ALIGN=MIDDLE  ALT=\"+t+=+2.4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Convert <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.4+ ALIGN=MIDDLE  ALT=\"+.4+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs to minutes <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.4%2A60+=+24+ ALIGN=MIDDLE  ALT=\"+.4%2A60+=+24+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Working together, they take 2 hrs 24 minutes<BR>\n" );
document.write( "to build 10 robots\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );