document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=864679>Question 864679</A>: <I><SPAN STYLE=\"word-break: break-all;\"> when the price of a box of peanuts is increased by 30% its sales decreased by x% such that the revenue decreased by 9%.what is the value of x?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #521192 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39627)</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=521192\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Idea applied is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Price%2AItemCount=Revenue ALIGN=MIDDLE  ALT=\"Price%2AItemCount=Revenue\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Let p = original price<BR>\n" );
document.write( "Let q = original count of items sold<BR>\n" );
document.write( "x/100 = the fraction of q not sold, compared to q.\r<BR>\n" );
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document.write( "Price____________Item Count__________Revenue<BR>\n" );
document.write( "p________________q___________________pq<BR>\n" );
document.write( "p(1.30)__________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=q-q%28x%2F100%29 ALIGN=MIDDLE  ALT=\"q-q%28x%2F100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >__________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%281.30%29%28q-q%28x%2F100%29%29=pq%281.30%29%281-x%2F100%29 ALIGN=MIDDLE  ALT=\"p%281.30%29%28q-q%28x%2F100%29%29=pq%281.30%29%281-x%2F100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Revenue decreased by 9% upon the price increase.<BR>\n" );
document.write( "Also meaning, new revenue became 91% of original revenue, since 9+91=100.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28pq%281.30%29%281-x%2F100%29=pq%2891%2F100%29%29 ALIGN=MIDDLE  ALT=\"highlight%28pq%281.30%29%281-x%2F100%29=pq%2891%2F100%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.30%281-x%2F100%29=91%2F100 ALIGN=MIDDLE  ALT=\"1.30%281-x%2F100%29=91%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" >  Divided both members by pq.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.3-%281.3%2F100%29x=91%2F100 ALIGN=MIDDLE  ALT=\"1.3-%281.3%2F100%29x=91%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=130-1.3x=91 ALIGN=MIDDLE  ALT=\"130-1.3x=91\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=130-91=1.3x ALIGN=MIDDLE  ALT=\"130-91=1.3x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.3x=39 ALIGN=MIDDLE  ALT=\"1.3x=39\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%283%2A13%29%2F%2813%2A0.1%29 ALIGN=MIDDLE  ALT=\"x=%283%2A13%29%2F%2813%2A0.1%29\"   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=30%29 ALIGN=MIDDLE  ALT=\"highlight%28x=30%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "The percent drop in count of items sold was 30. </SPAN>\n" );
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