document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=338744>Question 338744</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a pizza with a 25cm diameter cost $4.60.<BR>\n" );
document.write( "a pizza with a 31cm diameter cost $6.00.<BR>\n" );
document.write( "How do you work how which has the best value? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #242812 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=242812\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 25cm diameter cost $4.60.<BR>\n" );
document.write( "area of pizza = pi*r^2<BR>\n" );
document.write( "diameter = 25 cm . radius = 12.5 cm<BR>\n" );
document.write( "A = pi*(12.5)^2<BR>\n" );
document.write( "= 491 sq. cm<BR>\n" );
document.write( "cost = $4.60<BR>\n" );
document.write( "cost per unit area = 4.6/491<BR>\n" );
document.write( "= 0.93 cents / sq.cm<BR>\n" );
document.write( "..<BR>\n" );
document.write( "a pizza with a 31cm diameter cost $6.00.<BR>\n" );
document.write( "A= pi*(15.5)^2<BR>\n" );
document.write( "= 754.86 sq. cm<BR>\n" );
document.write( "cost per sq.cm = 6.00/754.86<BR>\n" );
document.write( "0.79 cents / sq. cm.----------better value\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );