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
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> 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
Log On
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..
