document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1006967>Question 1006967</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This problem is really confusing me. I've been trying for a while but just don't know how to do it. Could you help?\r<BR>\n" );
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document.write( "A factory has an order for 23,500 paper clips. Machine A can make 1500 paper clips per hour while Machine B can make 2500 paper clips per hour. Machine A starts at 8:00 A.M. and Machine B starts at 1:00 P.M. At what time will the two machines 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 #622999 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=622999\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> it sounds like there is 5 hrs ( 8 AM to 1 PM )<BR>\n" );
document.write( "when only machine A is making paper clips<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1500+ ALIGN=MIDDLE  ALT=\"+1500+\"   DISABLED_style= \"max-width:90%; height:auto;\" > paper clips /hr is A's rate of making them<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2500+ ALIGN=MIDDLE  ALT=\"+2500+\"   DISABLED_style= \"max-width:90%; height:auto;\" > paper cips / hr is B's rate of making them<BR>\n" );
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document.write( "What part of the order does machine A get done<BR>\n" );
document.write( "in 5 hrs working alone?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1500%2A5+=+7500+ ALIGN=MIDDLE  ALT=\"+1500%2A5+=+7500+\"   DISABLED_style= \"max-width:90%; height:auto;\" > paper clips<BR>\n" );
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document.write( "That leaves <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+23500+-+7500+=+16000+ ALIGN=MIDDLE  ALT=\"+23500+-+7500+=+16000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "left to be made<BR>\n" );
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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 number of hrs past 1PM when both<BR>\n" );
document.write( "machines working together will finish the order<BR>\n" );
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document.write( "Add their rates of working to get their rate  working together<BR>\n" );
document.write( "Their rate working together is:<BR>\n" );
document.write( "[ 16000 paper clips ] / [ t hrs ]<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1500+%2B+2500+=+16000%2Ft+ ALIGN=MIDDLE  ALT=\"+1500+%2B+2500+=+16000%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "( note that I am adding rates to get a rate )<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4000t+=+16000+ ALIGN=MIDDLE  ALT=\"+4000t+=+16000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+4+ ALIGN=MIDDLE  ALT=\"+t+=+4+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
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document.write( "1 PM + 4 hrs = 5 PM when the order will be finished </SPAN>\n" );
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