document.write( "Question 67093: The length of a rectangular playing field is 5ft less than twice its width. if the perimeter of theplaying field is 230 ft. find the length and width of the field. \n" ); document.write( "

Algebra.Com's Answer #47703 by Zoop(21) $\"\"$ $\"About$

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Let's take X as the width and 2x-5 as the length.
\n" ); document.write( "That means:\r
\n" ); document.write( "\n" ); document.write( " $\"2%28x%29%2B2%282x-5%29=230\"$
\n" ); document.write( "(we multiplied by 2 because perimeter contains 2 of the length and 2 of the width)\r
\n" ); document.write( "\n" ); document.write( "That becomes:\r
\n" ); document.write( "\n" ); document.write( " $\"2x%2B4x-10=230\"$ \r
\n" ); document.write( "\n" ); document.write( "Which simplifies to:
\n" ); document.write( " $\"6x-10=230\"$ , $\"6x=240\"$ , $\"x=40\"$ ;\r
\n" ); document.write( "\n" ); document.write( "That means that the width is 40 and the length is 75 (40*2-5)\r
\n" ); document.write( "\n" ); document.write( "Done. =) \n" ); document.write( "

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