document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1176894>Question 1176894</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A total of 1,200 teachers attended a mathematics conference. Early bird registration fee is at 2,000 pesos per teacher while regular registration fee costs 2,500 pesos per teacher. <BR>\n" );
document.write( "a. If x is the number of teachers who registered early, express the total fees collected in terms of x.<BR>\n" );
document.write( "b. If 2,825,000 pesos were collected, how many of each type registered? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #804906 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=804906\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+ ALIGN=MIDDLE  ALT=\"x+\"   DISABLED_style= \"max-width:90%; height:auto;\" >is the number of teachers who registered early<BR>\n" );
document.write( "let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+ ALIGN=MIDDLE  ALT=\"y+\"   DISABLED_style= \"max-width:90%; height:auto;\" >be the number of teachers who registered  regularly\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%2By=1200 ALIGN=MIDDLE  ALT=\"x+%2By=1200\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1200-x ALIGN=MIDDLE  ALT=\"y=1200-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....eq.1\r<BR>\n" );
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document.write( "a.\r<BR>\n" );
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document.write( " If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+ ALIGN=MIDDLE  ALT=\"x+\"   DISABLED_style= \"max-width:90%; height:auto;\" >is the number of teachers who registered early, express the total fees collected in terms of x.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2000x ALIGN=MIDDLE  ALT=\"2000x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "b. <BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2825000 ALIGN=MIDDLE  ALT=\"2825000\"   DISABLED_style= \"max-width:90%; height:auto;\" > pesos were collected, how many of each type registered?\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2000x%2B2500y=2825000 ALIGN=MIDDLE  ALT=\"2000x%2B2500y=2825000\"   DISABLED_style= \"max-width:90%; height:auto;\" >..........substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > from eq.1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2000x%2B2500%281200-x%29=2825000 ALIGN=MIDDLE  ALT=\"2000x%2B2500%281200-x%29=2825000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2000x%2B3000000+-+2500x=2825000 ALIGN=MIDDLE  ALT=\"2000x%2B3000000+-+2500x=2825000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3000000+-+500x=2825000 ALIGN=MIDDLE  ALT=\"3000000+-+500x=2825000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3000000+-+2825000=500x ALIGN=MIDDLE  ALT=\"3000000+-+2825000=500x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=175000=500x ALIGN=MIDDLE  ALT=\"175000=500x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=175000%2F500 ALIGN=MIDDLE  ALT=\"x=175000%2F500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1750%2F5 ALIGN=MIDDLE  ALT=\"x=1750%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=350 ALIGN=MIDDLE  ALT=\"x=350\"   DISABLED_style= \"max-width:90%; height:auto;\" >-> the number of teachers who registered early\r<BR>\n" );
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document.write( "go to eq.1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1200-x ALIGN=MIDDLE  ALT=\"y=1200-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....eq.1, substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1200-350 ALIGN=MIDDLE  ALT=\"y=1200-350\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=850 ALIGN=MIDDLE  ALT=\"y=850\"   DISABLED_style= \"max-width:90%; height:auto;\" >-> the number of teachers who registered regularly\r<BR>\n" );
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document.write( "the total fees collected  from teachers who registered early:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2000x=2000%2A350=700000 ALIGN=MIDDLE  ALT=\"2000x=2000%2A350=700000\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the total fees collected  from teachers who registered regularly:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2500y=2500%2A850=2125000 ALIGN=MIDDLE  ALT=\"2500y=2500%2A850=2125000\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "check total: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=700000%2B2125000=2825000 ALIGN=MIDDLE  ALT=\"700000%2B2125000=2825000\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );