document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113457>Question 113457</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jim wants to buy cement to anchor two posts for a swing he is building.  He has dug 2 round holes that 12 inches in diameter and 40 inches deep.  He wants to fill each with concrete around a rectangular supporting beam that is 3.5 inches by 5.5 inches.  Each 80-pound bag of concrete mixes with water to make 0.6 cubic fee of concrete.  How many bags of concrete must he buy for the job?\r<BR>\n" );
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document.write( "if you would explain how you got the answer to this question that would be awesome. thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82538 by </B><A HREF=/tutors/aboutme.mpl?userid=rajagopalan><B>rajagopalan(174)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rajagopalan><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=rajagopalan><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=82538\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> volume of 2 pits =2xpixrxrxh=2x(22/7)x(12/2)x(12/2)x40= 9051.42 cu in	<BR>\n" );
document.write( "volume of pole=2(LxBxH)=2x	770=1540 cu in			<BR>\n" );
document.write( "volume of cement needed = vol of pits-vol of poles=9051-1540=8281.42cu inch<BR>\n" );
document.write( "volume of cement needed = 8281.42cu inch/(12x12x12) cu ft = 4.34 cu ft<BR>\n" );
document.write( "no of bags	= Vol of cement needed /one bag capacity= 4.34/0.6=7.2 <BR>\n" );
document.write( "Say 8 bags ( the next integer)<BR>\n" );
document.write( "*<BR>\n" );
document.write( "He has to buy 8 bags of cement <BR>\n" );
document.write( "okay<BR>\n" );
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