document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=717890>Question 717890</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There is this homework problem I have for Pre-Algebra. It is on scale factors. This is the problem:\r<BR>\n" );
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document.write( "What scale factor was used to build a 55 ft wide billboard from a 25 in. wide model?\r<BR>\n" );
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document.write( "I tried to write a proportion (model to actual), and I ended up getting 5 in. to 11 ft. I remember my teacher saying that when doing a scale factor, and it is inches to feet, then it has to be a certain number of inches to 1 ft. He said the exception is that if the scale factor ends up like 1/6 in. to 1 ft because there is no 1/6 inch mark on a ruler. Now, I am confused as to how this problem should be done, and I would be very grateful if someone were to clearly explain how to do this problem. \r<BR>\n" );
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document.write( "By the way, I am sorry if the category for this question is incorrect. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #440649 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=440649\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What scale factor was used to build a 55 ft wide billboard from a 25 in. wide model? <BR>\n" );
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document.write( "Ans: (55*12)in/25in = (11/5)12 = 132/5 = 26 2/5 = 26.4\r<BR>\n" );
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document.write( "The billboard is 26 2/5 or 132/5 times the model<BR>\n" );
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document.write( "Scale factor: 26 2/5 or 26.4 to 1<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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