document.write( "Question 1040039: I know the answer to the problem, but what I need is to know how to write the equation. So here it goes....
\n" ); document.write( "The perimeter of a rectangle is 70 meters.
\n" ); document.write( "If the width is 40 % of the length, find the dimensions of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #654821 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "I know the answer to the problem, but what I need is to know how to write the equation. So here it goes....
\n" ); document.write( "The perimeter of a rectangle is 70 meters.
\n" ); document.write( "If the width is 40 % of the length, find the dimensions of the rectangle.
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document.write( "Let L be the length. \r\n" );
document.write( "Then the width W = 0.4*L, according to the condition.\r\n" );
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document.write( "The perimeter is \r\n" );
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document.write( "L + W + L + W = 2L + 2W = 2L + 2*0.4*L = 2.8L,\r\n" );
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document.write( "and we have an equation \r\n" );
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document.write( "2.8L = 70.\r\n" );
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document.write( "Then L =  = 25 m.\r\n" );
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document.write( "Answer.  The length is 25 m.  The width is 0.4*25 = 10 m.\r\n" );
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\n" ); document.write( "\n" ); document.write( "For many other similar problems see the lessons \r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on the perimeter and side lengths of a triangle\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on the perimeter and side lengths of a right-angled triangle\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on the perimeter and the side lengths of a parallelogram\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on the perimeter and side lengths of a rectangle\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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