document.write( "Question 1210266: A sq. ft. of wrought iron weighs 40 lbs. Determine weight of a portion 11 in. by 9 in.\r
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document.write( "11 ( ? of 40 lbs.) = ? lbs.\r
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document.write( "9 ( ? of ? ) = ? lbs.
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document.write( "99 sq. in. = ? lbs.\r
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document.write( "How do I determine the first two ?'s ?
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Algebra.Com's Answer #851772 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! Your comparison is based on an area, and assumes a consistant thickness, for volume.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1 square foot is 12*12 square inches, or 144 square inches.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The weight for a 11*9 inch^2 portion is \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " |