document.write( "Question 1177440: The perimeter of a rectangle is 16 feet. If twice its length is 4 times its width, find the width and the length of a rectangle.\r
\n" ); document.write( "\n" ); document.write( "My Work:
\n" ); document.write( "Equation 1: 2L=4W
\n" ); document.write( "Equation 2: L+W=16\r
\n" ); document.write( "\n" ); document.write( "W=16/3
\n" ); document.write( "L=10/6
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Algebra.Com's Answer #806445 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "The perimeter of a rectangle: \"P=2%28L%2BW%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if the perimeter of a rectangle is \"16\" feet, then\r
\n" ); document.write( "\n" ); document.write( "\"2%28L%2BW%29=16\"............eq.1\r
\n" ); document.write( "\n" ); document.write( "if twice its length is \"4\" times its width, then\r
\n" ); document.write( "\n" ); document.write( "\"2L=4W\".......solve for \"L\"\r
\n" ); document.write( "\n" ); document.write( "\"L=2W\".......eq.2, substitute in eq.1\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"2%282W%2BW%29=16\"............eq.1\r
\n" ); document.write( "\n" ); document.write( "\"%283W%29=16%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"3W=8\"\r
\n" ); document.write( "\n" ); document.write( "\"W=8%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( "\"L=2W\".......eq.2, substitute \"W\"\r
\n" ); document.write( "\n" ); document.write( "\"L=2%288%2F3%29\"\r
\n" ); document.write( "\n" ); document.write( "\"L=16%2F3\"\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "the width is \"8%2F3\" ft and the length \"16%2F3\" ft
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