document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1188209>Question 1188209</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are designing boxes to ship your newest design. You use a rectangular piece of cardboard measuring 40 in. by 30 in. to be make an open box with a base (bottom) of 900 in2 by cutting equal squares from the four corners and then bending up the sides. Find, to the nearest tenth of an inch, the length of the side of the square that must be cut from each corner.<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 #819242 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=819242\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Draw this helps<BR>\n" );
document.write( "the bottom will be 40-2x by 30-2x, and that will equal 900 in^2. x is the length of the side of the square.<BR>\n" );
document.write( "1200-140x+4x^2=900 <BR>\n" );
document.write( "4x^2-140x+300=0<BR>\n" );
document.write( "x^2-35x+75=0<BR>\n" );
document.write( "x=(1/2)(35+/- sqrt (1225-300)); sqrt 925=30.4<BR>\n" );
document.write( "x=32.7 inches and 2.3 inches; 2.3 inches is the answer.<BR>\n" );
document.write( "the sides will become 35.4 x 25.4=899.16 in^2.<BR>\n" );
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