document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1133824>Question 1133824</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One computer requires 75 minutes to solve a complex math problem. A faster one<BR>\n" );
document.write( "requires 50 minutes for the same problem. How long would it take if both computers<BR>\n" );
document.write( "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 #751071 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=751071\">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( "1st rate:<BR>\n" );
document.write( "[ 1 problem solved ] / [ 75 min ]<BR>\n" );
document.write( "2nd rate:<BR>\n" );
document.write( "[ 1 problem solved ] / [ 50 min ]<BR>\n" );
document.write( "------------------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+1%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = their rate working together<BR>\n" );
document.write( "in problems/min<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F75+%2B+1%2F50+=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+1%2F75+%2B+1%2F50+=+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=+150t+ ALIGN=MIDDLE  ALT=\"+150t+\"   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+=+150+ ALIGN=MIDDLE  ALT=\"+2t+%2B+3t+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5t+=+150+ ALIGN=MIDDLE  ALT=\"+5t+=+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+30+ ALIGN=MIDDLE  ALT=\"+t+=+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "It takes them 30 min working together<BR>\n" );
document.write( "--------------------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F75+%2B+1%2F50+=+1%2F30+ ALIGN=MIDDLE  ALT=\"+1%2F75+%2B+1%2F50+=+1%2F30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F15+%2B+1%2F10+=+1%2F6+ ALIGN=MIDDLE  ALT=\"+1%2F15+%2B+1%2F10+=+1%2F6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.06667+%2B+.1+=+.16667+ ALIGN=MIDDLE  ALT=\"+.06667+%2B+.1+=+.16667+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.16667+=+.16667+ ALIGN=MIDDLE  ALT=\"+.16667+=+.16667+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );