document.write( "Question 939257: The perimeter of a rectangle is 30 feet its length is 3 less than twice its width.What is the length and the width of the rectangle? \n" ); document.write( "

Algebra.Com's Answer #572588 by srinivas.g(540) $\"\"$ $\"About$

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perimeter = 30 feet
\n" ); document.write( "let width be x
\n" ); document.write( "length = 2x-3
\n" ); document.write( " formula : perimeter = 2(length+width)
\n" ); document.write( " 30 = 2((2x-3)+x)
\n" ); document.write( " 30 =2( 3x-3)
\n" ); document.write( " divide with 2 on both sides
\n" ); document.write( " $\"30%2F2++=2+%283x-3%29%2F2\"$
\n" ); document.write( " 15 =3x-3
\n" ); document.write( " add 3 on both sides
\n" ); document.write( " 15+3 = 3x-3+3
\n" ); document.write( " 18 = 3x
\n" ); document.write( " divide with 3 on both sides
\n" ); document.write( " $\"18%2F3+=3x%2F3\"$
\n" ); document.write( " 6= x
\n" ); document.write( "result: width = 6 feet
\n" ); document.write( " length = 2*6-3 = 12-3 =9 feet \n" ); document.write( "

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