document.write( "Question 1002808: What are the dimension of the first rectangle? if in a certain rectangle,the sum of the length and the width is 14 (measured in cm). A second rectangle is 5 times as look as the first, and 3 times as wide. The perimeter of the second rectangle is 91 \n" ); document.write( "
Algebra.Com's Answer #619674 by stanbon(75887)\"\" \"About 
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What are the dimensions of the first rectangle? if in a certain rectangle,the sum of the length and the width is 14 (measured in cm).
\n" ); document.write( "length = x
\n" ); document.write( "width = 14-x
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\n" ); document.write( "A second rectangle is 5 times as long as the first, and 3 times as wide.
\n" ); document.write( "length = 5x
\n" ); document.write( "width = 3(14-x) = 42-3x
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\n" ); document.write( "The perimeter of the second rectangle is 91
\n" ); document.write( "2[5x + 42-3x] = 91
\n" ); document.write( "------
\n" ); document.write( "2[2x+42] = 91
\n" ); document.write( "----
\n" ); document.write( "4x + 84 = 91
\n" ); document.write( "4x = 7
\n" ); document.write( "x = 7/4 (length of the 1st rectangle)
\n" ); document.write( "14-x = 14-(7/4) = 12 1/4 (width of the 1st rectangle)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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