document.write( "Question 162644: A parking lot has a perimeter of 600ft. The width is 30ft less than the lenght. Find the dimensions of the parking lot.\r
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Algebra.Com's Answer #119868 by jojo14344(1513)\"\" \"About 
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A parking lot has a perimeter of 600ft. The width is 30ft less than the lenght. Find the dimensions of the parking lot.
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\n" ); document.write( "\"P=L%2AW\", EQN 1
\n" ); document.write( "But, \"W=L-30ft\"
\n" ); document.write( "So,
\n" ); document.write( "\"P=L%28L-30ft%29\",
\n" ); document.write( "\"600ft=L%5E2-30L\"
\n" ); document.write( "\"L%5E2-30L-600=0\"
\n" ); document.write( "*Note: \"system%28a=1%2Cb=-30%2Cc=-600%2Cx=L%29\"
\n" ); document.write( "By Pyth theorm: \"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"
\n" ); document.write( "ANSWER: \"x=L=43.723ft\"
\n" ); document.write( "And, \"W=43.723-30=13.723ft\"
\n" ); document.write( "In doubt? go back EQN 1,
\n" ); document.write( "\"600ft=43.723%2A13.723\"
\n" ); document.write( "\"600ft=600.01ft\", close enough! Because we round off x (Length)
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
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