document.write( "Question 905239: A rectangles length is three times it width. The area is 27 inches. Find the perimeter \n" ); document.write( "

Algebra.Com's Answer #549101 by Math_Boss(45) $\"\"$ $\"About$

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$\"l=3w\"$
\n" ); document.write( " $\"A=27\"$
\n" ); document.write( " $\"A=lw\"$
\n" ); document.write( "Substitute l=3w
\n" ); document.write( " $\"A=3w%2Aw\"$
\n" ); document.write( " $\"A=3w%5E2\"$
\n" ); document.write( " $\"27=3w%5E2\"$
\n" ); document.write( " $\"27%2F3=%283%2Aw%5E2%29%2F3\"$
\n" ); document.write( " $\"9=w%5E2\"$
\n" ); document.write( " $\"w=3\"$
\n" ); document.write( "w=-3 (reject)
\n" ); document.write( " $\"l=3%2A3=9\"$
\n" ); document.write( " $\"P=2%28l%2Bw%29\"$
\n" ); document.write( " $\"P=2%289%2B3%29\"$
\n" ); document.write( " $\"P=24\"$
\n" ); document.write( "Ans:24 inches
\n" ); document.write( " \n" ); document.write( "

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