document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077236>Question 1077236</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Three years ago the average price of a movie ticket was $8.75 and now it is $11. What was the annual multiplier and the percent increase? <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 #691752 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=691752\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> % increase is increase/original amount or 2.25/8.75=25.7% over 3 years<BR>\n" );
document.write( "11=8.75(1+r)^3<BR>\n" );
document.write( "divide by 8.75<BR>\n" );
document.write( "1.257 (don't round until the end)=(1+r)^3<BR>\n" );
document.write( "take ln of both sides<BR>\n" );
document.write( ".2288=3ln(1+r)<BR>\n" );
document.write( "divide by 3 both sides<BR>\n" );
document.write( ".0763=ln (1+r)<BR>\n" );
document.write( "raise both sides to the e power<BR>\n" );
document.write( "1.0792=1+r<BR>\n" );
document.write( "0.0792=r<BR>\n" );
document.write( "7.92% per year.<BR>\n" );
document.write( "1.0792^3=1.257\r<BR>\n" );
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