document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=675697>Question 675697</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The outside wall of one endo of a house is rectacgular, 6yds high and 8 yards wide. The wall also has four circular windows, each one with a diameter of 2.5 feet. How many gallons of paint would it take to paint this wall if each gallon covers 500 square ft?<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 #419996 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=419996\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=number of gal needed to paint the wall<BR>\n" );
document.write( "Paintable surface equals wall area minus area of the four circular windows<BR>\n" );
document.write( "Wall  Area=H*W=6*3=18ft*8*3=24ft=18*24=432 sq ft<BR>\n" );
document.write( "Area of 1 circular window =pi*r^2; r=d/2 so r^2=2.5^2/4=1.5625 sooo<BR>\n" );
document.write( "pi*r^2=3.14*1.5625=4.90625<BR>\n" );
document.write( "Area of 4 circular windows=4*4.90625=19.625 sq feet<BR>\n" );
document.write( "Paintable surface=432-19.625=412.375 sq ft<BR>\n" );
document.write( "Now we can set up a simple ration:<BR>\n" );
document.write( "500/1=412.375/x cross multiply<BR>\n" );
document.write( "500x=412.375<BR>\n" );
document.write( "x=0.82475 gal\r<BR>\n" );
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document.write( "CK<BR>\n" );
document.write( "0.82475*500sq ft/gal=412.375<BR>\n" );
document.write( "412.375=412.375<BR>\n" );
document.write( "Hope this helps---ptaylor </SPAN>\n" );
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