document.write( "Question 1128433: A rectangular room containing 154 square feet is 3 feet longer than it is wide. How long of a piece of crown molding is needed to trim the perimeter of the ceiling? \n" ); document.write( "

Algebra.Com's Answer #744958 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "You can easily solve it MENTALLY by noticing that  154 = 11*14  is the decomposition of the number 154 into the product \r\n" );
document.write( "of two numbers, whose difference is  3 = 14 - 11.\r\n" );
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document.write( "Alternatively, you can solve a quadratic equation\r\n" );
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document.write( "    x*(x+3) = 154,\r\n" );
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document.write( "where x is the unknown width.\r\n" );
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document.write( "Answer.  The dimensions are  11 ft by 14 ft  and the perimeter is  11+14+11+14 = 50 ft.\r\n" );
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