document.write( "Question 265285: A circular pool measures 16 feet across. One cubic yard of concrete is to be used to create a circular border of uniform width around the pool. If the border is to have a dept of 6 inches, how wide will the border be? (1 cubic yard = 27 cubic feet.)
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document.write( " Please help me answer this problem..... Thanks a bunch! \n" );
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Algebra.Com's Answer #195098 by drk(1908)![]() ![]() ![]() You can put this solution on YOUR website! First convert 6 inches into 1/2 ft. Now all units are in feet. \n" ); document.write( "let x feet be the uniform length of the concrete. \n" ); document.write( "----- \n" ); document.write( "we can find the area of the concrete as \n" ); document.write( " \n" ); document.write( "and then the volume os area of circle times height. So, we get \n" ); document.write( " \n" ); document.write( "multiply by 2 to get \n" ); document.write( " \n" ); document.write( "subtract 54 to get \n" ); document.write( " \n" ); document.write( "by quadratic, we get x as \n" ); document.write( "x ~ 1.0105 feet. \n" ); document.write( " |