while mining, Sara found a large metal bar that weigh 20 pounds. Sara was also able to determine that able to determine that the bar has 8 pounds of copper. What percent of the weight of the bar was copper? Round your answer to the nearest tenth if necessary.
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Home » Mathematics » while mining, Sara found a large metal bar that weigh 20 pounds. Sara was also able to determine that able to determine that the bar has 8 pounds of copper.