SOLUTION: If 9 iron bars 7ft. long, 3 inches wide, and 1.2 inches thick weigh 912 lbs., what will be the weight of 5 bars of the same material 10ft. long, 4 inches wide, and 2.3 inches thick
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Question 433771: If 9 iron bars 7ft. long, 3 inches wide, and 1.2 inches thick weigh 912 lbs., what will be the weight of 5 bars of the same material 10ft. long, 4 inches wide, and 2.3 inches thick?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
84x3x1.2x9=2721.6 total cu. ins..
912x16=14592 ozs.
14592/2721.6=5.36 ozs./cu.in
----------------------
5x120x4x2.3=5520 cu.ins x 5.36 ozs./cu.in=29587.2oz=1849.2 lbs..
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