document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=821960>Question 821960</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When air is pumped into a tire, the pressure required varies inversely as the volume of air.  If the pressure is 30 lb/in2 when the volume is 140 in3, find the pressure when the volume is 100 in3.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #494527 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=494527\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When air is pumped into a tire, the pressure required varies inversely as the volume of air.  If the pressure is 30 lb/in2 when the volume is 140 in3, find the pressure when the volume is 100 in3.<BR>\n" );
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document.write( "PV = nRT<BR>\n" );
document.write( "PV = k (a constant)<BR>\n" );
document.write( "30*140 = k = 4200<BR>\n" );
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document.write( "P*100 = 4200<BR>\n" );
document.write( "P = 42 psi<BR>\n" );
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document.write( "Pumping air into a tire doesn't work like that, btw.<BR>\n" );
document.write( "It's another instance of the author of the problem not knowing what he's talking about.<BR>\n" );
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