document.write( "Question 551113: A scale model of a library is 5 inches long and 3 inches wide. The actual length of the library is 135 feet. What is the width? \n" ); document.write( "
Algebra.Com's Answer #359488 by nyc_function(2741)\"\" \"About 
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Let w = width\r
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\n" ); document.write( "\n" ); document.write( "5/135 = 3/w\r
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\n" ); document.write( "\n" ); document.write( "135 * 3 = 5w\r
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\n" ); document.write( "\n" ); document.write( "405 = 5w\r
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\n" ); document.write( "\n" ); document.write( "405/5 = w\r
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\n" ); document.write( "\n" ); document.write( "81 = w\r
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\n" ); document.write( "\n" ); document.write( "The width is 81 feet.\r
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