document.write( "Question 1001866: The permitter of a rectangular concrete slab is 72 feet and its area is 308 square feet. What is the length of the longer side of the slab?
\n" ); document.write( "23 ft
\n" ); document.write( "25 ft
\n" ); document.write( "22 ft
\n" ); document.write( "24 ft
\n" ); document.write( "

Algebra.Com's Answer #618937 by lwsshak3(11628)\"\" \"About 
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The permitter of a rectangular concrete slab is 72 feet and its area is 308 square feet. What is the length of the longer side of the slab?
\n" ); document.write( "let x=length
\n" ); document.write( "let y=width
\n" ); document.write( "2x+2y=perimeter=72
\n" ); document.write( "xy=308=area=308
\n" ); document.write( "y=308/x
\n" ); document.write( "2x+2(308/x=72
\n" ); document.write( "lcd:x
\n" ); document.write( "2x^2+616=72x
\n" ); document.write( "2x^2-72x+616
\n" ); document.write( "x^2-36x+308=0
\n" ); document.write( "(x-22)(x-14)
\n" ); document.write( "x=14 or 22
\n" ); document.write( "What is the length of the longer side of the slab? 22 ft
\n" ); document.write( "
\n" );