document.write( "Question 172995: A hobby gardner wishes to use 81ft of fencing to enclose a rectangular gardner and sub divide region into two smaller areas. If the total enclosed is 264 ft squared find the dimensions of the enclosed region. \n" ); document.write( "
Algebra.Com's Answer #127861 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A hobby gardner wishes to use 81 ft of fencing to enclose a rectangular gardner and sub divide region into two smaller areas. If the total enclosed is 264 ft squared find the dimensions of the enclosed region. \n" ); document.write( "----------------------------------------------------- \n" ); document.write( "Draw the picture of the rectangle with a vertical dividing line to create \n" ); document.write( "the two smaller areas. \n" ); document.write( "------------------------ \n" ); document.write( "Let the dividing line and 2 parallel sides be of length \"x\" ft. \n" ); document.write( "----------- \n" ); document.write( "That leaves (81-3x) ft. of fencing for the top and the bottom sides. \n" ); document.write( "Each of those sides will then be (81-3x)/2 ft. in length. \n" ); document.write( "-------------------------------------------------------------- \n" ); document.write( "The area will be [(81-3x)/2]*x = 265 sq. ft. \n" ); document.write( "81x - 3x^2 = 530 \n" ); document.write( "3x^2 - 81x + 530 = 0 \n" ); document.write( "--------------------------------------- \n" ); document.write( "x = [81 +- sqrt(81^2 -4*3*530)]/6\r \n" ); document.write( "\n" ); document.write( "x = [81 +- sqrt(201)]6\r \n" ); document.write( "\n" ); document.write( "Positive solution:\r \n" ); document.write( "\n" ); document.write( "x = [81 + 14.18]/6 ft \n" ); document.write( "x = 15.86 ft. \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |