document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1181041>Question 1181041</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Okay, so I'm really struggling on this question, and I was wondering if someone could tell me what I'm doing wrong.\r<BR>\n" );
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document.write( "Ralph is painting the barn below, including the sides and roof.  He wants to know how much paint to purchase. \r<BR>\n" );
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document.write( "The picture is in the link below:\r<BR>\n" );
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document.write( "https://founders.edtell.com/access/content/group/edtell_content_geometry/General%20Prisms.png\r<BR>\n" );
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document.write( "a. What is the total surface area that he is going to be painting?  Round your answer to the nearest hundredth.<BR>\n" );
document.write( "b. If one paint can covers 57 square feet, how many paint cans should he purchase?<BR>\n" );
document.write( "c. If each paint can costs $23.50, how much will the paint cost?<BR>\n" );
document.write( "d. Once the barn is finished being painted, there is going to be a party.  Ralph wants to know how many people to invite to the party.  What is the volume of the inside of the barn?\r<BR>\n" );
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document.write( "Here is the work I've done. I was told that it's incorrect. I looked back over it a couple of times, but I couldn't figure out where I went wrong. Can somebody please help me?\r<BR>\n" );
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document.write( "A.)\r<BR>\n" );
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document.write( "45x15x2=1350\r<BR>\n" );
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document.write( "20x15x2= 600\r<BR>\n" );
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document.write( "40x45x2= 3600\r<BR>\n" );
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document.write( "20x4= 80\r<BR>\n" );
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document.write( "1350+600+3600+80= 5630 ft\r<BR>\n" );
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document.write( "B.)\r<BR>\n" );
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document.write( "5630/57=98.77\r<BR>\n" );
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document.write( "98.77~99 cans\r<BR>\n" );
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document.write( "C.)\r<BR>\n" );
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document.write( "99x23.5=2326.5\r<BR>\n" );
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document.write( "2326.5= $2,326.50\r<BR>\n" );
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document.write( "D.)\r<BR>\n" );
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document.write( "45x20x15=19575\r<BR>\n" );
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document.write( "(1/2)x80x40x4=6400\r<BR>\n" );
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document.write( "19575+6400=25975 ft^3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #810843 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=810843\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "PART A\r<BR>\n" );
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document.write( "The barn is constructed by the following 2D shapes\r<BR>\n" );
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document.write( "Two triangles of height = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4 ALIGN=MIDDLE  ALT=\"4\"   DISABLED_style= \"max-width:90%; height:auto;\" > and base = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20 ALIGN=MIDDLE  ALT=\"20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Area = 2 * (1/2)*4*20) = 80}}}\r<BR>\n" );
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document.write( "Two rectangles of length = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20 ALIGN=MIDDLE  ALT=\"20\"   DISABLED_style= \"max-width:90%; height:auto;\" > and width = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15 ALIGN=MIDDLE  ALT=\"15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area+=+2+%2A+20+%2A+15+=+600 ALIGN=MIDDLE  ALT=\"Area+=+2+%2A+20+%2A+15+=+600\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Two rectangles of length = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=45 ALIGN=MIDDLE  ALT=\"45\"   DISABLED_style= \"max-width:90%; height:auto;\" > and width =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15 ALIGN=MIDDLE  ALT=\"+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area+=+2+%2A+45%2A15+=+1350 ALIGN=MIDDLE  ALT=\"Area+=+2+%2A+45%2A15+=+1350\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "One base of length = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=45 ALIGN=MIDDLE  ALT=\"45\"   DISABLED_style= \"max-width:90%; height:auto;\" > and width = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15 ALIGN=MIDDLE  ALT=\"15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area+=+45+%2A15+=+675 ALIGN=MIDDLE  ALT=\"Area+=+45+%2A15+=+675\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Two rectangles on each on one side of the roof. We have the length = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=45 ALIGN=MIDDLE  ALT=\"45\"   DISABLED_style= \"max-width:90%; height:auto;\" > but not the width. We can work out the width by using Pythagoras theorem\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%5E2+=+4%5E2+%2B+10%5E2 ALIGN=MIDDLE  ALT=\"w%5E2+=+4%5E2+%2B+10%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%5E2=+16+%2B+100 ALIGN=MIDDLE  ALT=\"w%5E2=+16+%2B+100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%5E2=+116 ALIGN=MIDDLE  ALT=\"w%5E2=+116\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w+=+sqrt%28116%29+=+10.77 ALIGN=MIDDLE  ALT=\"w+=+sqrt%28116%29+=+10.77\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Area of the two rectangles on the roof part is = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A10.77%2A+45+=+969.33 ALIGN=MIDDLE  ALT=\"2%2A10.77%2A+45+=+969.33\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Total area to paint = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=969.33%2B675%2B1350%2B600%2B80+=+3674.33 ALIGN=MIDDLE  ALT=\"969.33%2B675%2B1350%2B600%2B80+=+3674.33\"   DISABLED_style= \"max-width:90%; height:auto;\" >(to the nearest hundreth) ≈ <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3700 ALIGN=MIDDLE  ALT=\"3700\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "PART C<BR>\n" );
document.write( "one paint can covers <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=57 ALIGN=MIDDLE  ALT=\"57\"   DISABLED_style= \"max-width:90%; height:auto;\" > square feet\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3700%2F57=65 ALIGN=MIDDLE  ALT=\"3700%2F57=65\"   DISABLED_style= \"max-width:90%; height:auto;\" >->need <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=65 ALIGN=MIDDLE  ALT=\"65\"   DISABLED_style= \"max-width:90%; height:auto;\" > cans of paint<BR>\n" );
document.write( "Total cost of paint =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+65+%2A23.50+=+1527.50 ALIGN=MIDDLE  ALT=\"+65+%2A23.50+=+1527.50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "PART D\r<BR>\n" );
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document.write( "The barn is constructed by a cuboid and a rectangular prism\r<BR>\n" );
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document.write( "Volume of cuboid <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=+length+%2Awidth+%2A+height ALIGN=MIDDLE  ALT=\"V=+length+%2Awidth+%2A+height\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=+20%2A45%2A15 ALIGN=MIDDLE  ALT=\"V=+20%2A45%2A15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V=13500 ALIGN=MIDDLE  ALT=\"V=13500\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "V of triangular prism = Area of cross section × depth<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+%28%281%2F2%29%2A4%2A20%29+%2A+45 ALIGN=MIDDLE  ALT=\"V+=+%28%281%2F2%29%2A4%2A20%29+%2A+45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+1800 ALIGN=MIDDLE  ALT=\"V+=+1800\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Total volume <BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1800+%2B+13500+=+15300 ALIGN=MIDDLE  ALT=\"1800+%2B+13500+=+15300\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );