document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199156>Question 1199156</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The screen size of a television is determined by the length of the diagonal of the rectangular screen. Traditional TVs come in 4 : 3 format, meaning the ratio of the length to the width of the rectangular screen is 4 to 3. What is the area of a 37-inch Traditional TV screen? What is the area of a 37-inch LCD TV whose screen is in a 16 : 9 format? Which screen is larger?\r<BR>\n" );
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document.write( "Hint given but the textbook:<BR>\n" );
document.write( "If x is the length of a 4 : 3 format screen, then (3x/4)is the width.\r<BR>\n" );
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document.write( "Let me see.\r<BR>\n" );
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document.write( "I know what x represents. I will say let y = length of a 16 : 9 format screen. If this is true, then 9y/16 is the width.\r<BR>\n" );
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document.write( "My set up for x goes like this:<BR>\n" );
document.write( "37 = x(3x/4)<BR>\n" );
document.write( "Solving for x, I get 7.024.\r<BR>\n" );
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document.write( "My set up for y goes like this:<BR>\n" );
document.write( "37 = y(9y/16)<BR>\n" );
document.write( "Solving for y,I get 8.11035.\r<BR>\n" );
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document.write( "I see that y > x,meaning the LCD TV screen format is bigger.<BR>\n" );
document.write( "However, according to the textbook,I am wrong.\r<BR>\n" );
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document.write( "Textbook Answer:\r<BR>\n" );
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document.write( "The screen of a 37-inch TV in 4 : 3 format has an area of 657.12 in^2.<BR>\n" );
document.write( "The screen of a 37-inch TV in 16 : 9 format has an area of 587.97 in^2.<BR>\n" );
document.write( "According to the textbook, the traditional TV has the bigger screen.\r<BR>\n" );
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document.write( "Questions:\r<BR>\n" );
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document.write( "1. What did I do wrong?<BR>\n" );
document.write( "2. What is the correct set up for each TV to find the area?<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #832858 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39616)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=832858\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4:3 dimensions ratio\r<BR>\n" );
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document.write( "say 4n by 3n inches-square\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284n%29%5E2%2B%283n%29%5E2=37%5E2 ALIGN=MIDDLE  ALT=\"%284n%29%5E2%2B%283n%29%5E2=37%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16n%5E2%2B9n%5E2=37%5E2 ALIGN=MIDDLE  ALT=\"16n%5E2%2B9n%5E2=37%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25n%5E2=37%5E2 ALIGN=MIDDLE  ALT=\"25n%5E2=37%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5n=37 ALIGN=MIDDLE  ALT=\"5n=37\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=37%2F5 ALIGN=MIDDLE  ALT=\"n=37%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Length  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2837%2F5%29 ALIGN=MIDDLE  ALT=\"4%2837%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Width <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2837%2F5%29 ALIGN=MIDDLE  ALT=\"3%2837%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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