document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1045747>Question 1045747</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A newspaper has current circulation of 30,000 and charges 65c per paper.<BR>\n" );
document.write( "For each 10c rise in price past experience indicates circulation will decrease by 2000.\r<BR>\n" );
document.write( "\n" );
document.write( "x=number of price increases<BR>\n" );
document.write( "price=0.65+0.10x\r<BR>\n" );
document.write( "\n" );
document.write( "Find the increase price of the newspaper to obtain an income of $19,350 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #661272 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=661272\">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=+I+ ALIGN=MIDDLE  ALT=\"+I+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = income from sales of papers<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+%28+30000+-+2000x+%29%2A%28+65+%2B+.1x+%29+ ALIGN=MIDDLE  ALT=\"+I+=+%28+30000+-+2000x+%29%2A%28+65+%2B+.1x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+2000%2A%28+15+-+x+%29%2A%28+65+%2B+.1x+%29+ ALIGN=MIDDLE  ALT=\"+I+=+2000%2A%28+15+-+x+%29%2A%28+65+%2B+.1x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+2000%2A%28+975+-+65x+%2B+1.5x+-+.1x%5E2+%29+ ALIGN=MIDDLE  ALT=\"+I+=+2000%2A%28+975+-+65x+%2B+1.5x+-+.1x%5E2+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+19350+=+2000%2A%28+975+-+65x+%2B+1.5x+-+.1x%5E2+%29+ ALIGN=MIDDLE  ALT=\"+19350+=+2000%2A%28+975+-+65x+%2B+1.5x+-+.1x%5E2+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9.675+=+975+-+63.5x+-+.1x%5E2++ ALIGN=MIDDLE  ALT=\"+9.675+=+975+-+63.5x+-+.1x%5E2++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-.1x%5E2+-+63.5x+%2B+965.325+=+0+ ALIGN=MIDDLE  ALT=\"+-.1x%5E2+-+63.5x+%2B+965.325+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-x%5E2+-+635x+%2B+9653.25+=+0+ ALIGN=MIDDLE  ALT=\"+-x%5E2+-+635x+%2B+9653.25+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "Use quadratic formula<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+-1+ ALIGN=MIDDLE  ALT=\"+a+=+-1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+-635+ ALIGN=MIDDLE  ALT=\"+b+=+-635+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+=+9653.25+ ALIGN=MIDDLE  ALT=\"+c+=+9653.25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28-%28-635%29+%2B-+sqrt%28+%28-635%29%5E2-4%2A%28-1%29%2A9653.25+%29%29%2F%282%2A%28-1%29%29+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+635+%2B-+sqrt%28+403225+%2B+38613+%29%29%2F%28%28-2%29%29+ ALIGN=MIDDLE  ALT=\"+x+=+%28+635+%2B-+sqrt%28+403225+%2B+38613+%29%29%2F%28%28-2%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+635+%2B-+sqrt%28+441838+%29%29%2F%28%28-2%29%29+ ALIGN=MIDDLE  ALT=\"+x+=+%28+635+%2B-+sqrt%28+441838+%29%29%2F%28%28-2%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+635+-+664.709+%29+%2F+%28-2%29+ ALIGN=MIDDLE  ALT=\"+x+=+%28+635+-+664.709+%29+%2F+%28-2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+-29.709+%29+%2F+%28-2%29+ ALIGN=MIDDLE  ALT=\"+x+=+%28+-29.709+%29+%2F+%28-2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+14.854+ ALIGN=MIDDLE  ALT=\"+x+=+14.854+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "15 increases in price will give an income of $19,350<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+%28+30000+-+2000x+%29%2A%28+65+%2B+.1x+%29+ ALIGN=MIDDLE  ALT=\"+I+=+%28+30000+-+2000x+%29%2A%28+65+%2B+.1x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+%28+30000+-+2000%2A14.854+%29%2A%28+65+%2B+.1%2A14.854+%29+ ALIGN=MIDDLE  ALT=\"+I+=+%28+30000+-+2000%2A14.854+%29%2A%28+65+%2B+.1%2A14.854+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+%28+30000+-+29708+%29%2A%28+65+%2B+1.4854+%29+ ALIGN=MIDDLE  ALT=\"+I+=+%28+30000+-+29708+%29%2A%28+65+%2B+1.4854+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+292%2A66.4854+ ALIGN=MIDDLE  ALT=\"+I+=+292%2A66.4854+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+I+=+19413.74+ ALIGN=MIDDLE  ALT=\"+I+=+19413.74+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I'm a little off from actual income. I must have<BR>\n" );
document.write( "a math error, but my method is good , I think </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );