document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=552709>Question 552709</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My question is on the surface area of a rectangular prism, i am givin the surface area of 242.2 square inches. The width of the rectangle is 6.4in and the lenght is 4.7in. I have to find the height. This question is for a St.Jude Children's Research Hospital found raiser, so this is very important to me that i get it answered.<BR>\n" );
document.write( "     I have to find the missing length, the height.<BR>\n" );
document.write( "Surface area = 242.2 square inches<BR>\n" );
document.write( "Width = 6.4 in<BR>\n" );
document.write( "lenth = 4.7 in<BR>\n" );
document.write( "Height = needs found\r<BR>\n" );
document.write( "\n" );
document.write( "thank you in advance </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #439743 by </B><A HREF=/tutors/aboutme.mpl?userid=letsgetthistraight><B>letsgetthistraight(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=letsgetthistraight><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=letsgetthistraight><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=439743\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can use the formula: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+Surface+Area+=+2HL+%2B+2LW+%2B+2WH+ ALIGN=MIDDLE  ALT=\"+Surface+Area+=+2HL+%2B+2LW+%2B+2WH+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "242.2 = 2(HxL) + 2(LxW) + 2(WxH) Now that you have it written out, fill it in:<BR>\n" );
document.write( "242.2 = 2(Hx4.7) + 2(4.7x6.4) + 2(6.4xH) Solve what you can, and divide by 2:<BR>\n" );
document.write( "121.1 = 4.7H + (4.7x6.4) + 6.4H<BR>\n" );
document.write( "121.1 = 4.7H + 30.08 + 6.4H<BR>\n" );
document.write( "121.1 = 11.1H + 30.08 Next, subtract 30.08 from each side:<BR>\n" );
document.write( "91.02 = 11.1H<BR>\n" );
document.write( "H = 8.2\r<BR>\n" );
document.write( "\n" );
document.write( "I have the booklet myself and have done the question, and in the back of the booklet the answers are shown. I'm supposed to show the work, so I did this and checked the answer: 8.2\r<BR>\n" );
document.write( "\n" );
document.write( "I was correct.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );