document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=33324>Question 33324</A>: <I><SPAN STYLE=\"word-break: break-all;\"> John surveyed a group of people about their knowledge of rats. To the nearest tenth of a percent, he found that 86.8% of the people surveyed thought rats<BR>\n" );
document.write( "carried diseases. Of the people who thought rats carried diseases,45.7% said that rats frequently carried rabies. Since rats do not frequently carry rabies these 21 people were mistaken. HOw many total people did john survey? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #19689 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=19689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let number of people surveyed be \"x\".<BR>\n" );
document.write( "Then # who thought rats carried deseases = 0.86x<BR>\n" );
document.write( "And 0.457(0.86) said rats frequently carried rabies<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "   number who thought rats frequently carried rabies = 21<BR>\n" );
document.write( "   0.457(0.86x)=21<BR>\n" );
document.write( "             x= 53.43...<BR>\n" );
document.write( "Number of people surveyed was 54<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "     </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );