document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130453>Question 1130453</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve and verify your answer. \r<BR>\n" );
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document.write( "A bookstore can purchase several calculators for a total cost of $300. If each calculator cost $1 less, the bookstore could purchase 10 additional calculators at the same total cost. How many calculators can be purchased at the regular price?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #747132 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=747132\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n+ ALIGN=MIDDLE  ALT=\"+n+\"   DISABLED_style= \"max-width:90%; height:auto;\" >= the original number of calculators<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300%2Fn+ ALIGN=MIDDLE  ALT=\"+300%2Fn+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the original cost/calculator<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+300%2Fn+-+1+%29%2A%28+n+%2B+10+%29+=+300+ ALIGN=MIDDLE  ALT=\"+%28+300%2Fn+-+1+%29%2A%28+n+%2B+10+%29+=+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300+-+n+%2B+3000%2Fn+-+10+=+300+ ALIGN=MIDDLE  ALT=\"+300+-+n+%2B+3000%2Fn+-+10+=+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3000%2Fn+-+n+=+10++ ALIGN=MIDDLE  ALT=\"+3000%2Fn+-+n+=+10++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3000+-+n%5E2+=+10n+ ALIGN=MIDDLE  ALT=\"+3000+-+n%5E2+=+10n+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-n%5E2+-+10n+%2B+3000+=+0+ ALIGN=MIDDLE  ALT=\"+-n%5E2+-+10n+%2B+3000+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+n+%2B+60+%29%2A%28+-n+%2B+50+%29+=+0+ ALIGN=MIDDLE  ALT=\"+%28+n+%2B+60+%29%2A%28+-n+%2B+50+%29+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ( by inspection )<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n+=+50+ ALIGN=MIDDLE  ALT=\"+n+=+50+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ( can't use the negative solution )<BR>\n" );
document.write( "50 calculators can be bought at original price<BR>\n" );
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document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+300%2F50+-+1+%29%2A%28+50+%2B+10+%29+=+300+ ALIGN=MIDDLE  ALT=\"+%28+300%2F50+-+1+%29%2A%28+50+%2B+10+%29+=+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+6+-+1+%29%2A60+=+300+ ALIGN=MIDDLE  ALT=\"+%28+6+-+1+%29%2A60+=+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2A60+=+300+ ALIGN=MIDDLE  ALT=\"+5%2A60+=+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300+=+300+ ALIGN=MIDDLE  ALT=\"+300+=+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
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