document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=990397>Question 990397</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two printers are put to work printing 200 copies of a document. One of the printers takes 2.5 minutes to print a copy; the other will print a copy in 1.5 minutes.<BR>\n" );
document.write( "a. Let x represent the time in mintes that both copiers work to complete the job. Write an exoression for how many copies both printers will print in x amount of minutes.<BR>\n" );
document.write( "b. How long will it take both printers working together to complete the job? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #610489 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=610489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "printers       copies   time    rate\r\n" );
document.write( "printer         1        2.5    1/2.5\r\n" );
document.write( "printer         1        1.5    1/1.5\r\n" );
document.write( "both at once    1        x      1/x\r\n" );
document.write( "</PRE>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "All rates are using 1 copy but different time amounts.  The x is for time in minutes for 1 copy; and the individual rates are additive to make the combined rate.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2.5%2B1%2F1.5=1%2Fx ALIGN=MIDDLE  ALT=\"1%2F2.5%2B1%2F1.5=1%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F%285%2F2%29%2B1%2F%283%2F2%29=1%2Fx ALIGN=MIDDLE  ALT=\"1%2F%285%2F2%29%2B1%2F%283%2F2%29=1%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F5%2B2%2F3=1%2Fx ALIGN=MIDDLE  ALT=\"2%2F5%2B2%2F3=1%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Simplest common denominator,  15x.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F5%2B2%2F3%29%2815x%29=15 ALIGN=MIDDLE  ALT=\"%282%2F5%2B2%2F3%29%2815x%29=15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2B10x=15 ALIGN=MIDDLE  ALT=\"6x%2B10x=15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16x=15 ALIGN=MIDDLE  ALT=\"16x=15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=15%2F16%29 ALIGN=MIDDLE  ALT=\"highlight%28x=15%2F16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---------THIS is how many minutes for the two printers together to make 1 copy; *but in practice, nobody uses more than one printer to make just one copy.  This is really 16 copies per each 15 minutes. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );