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28 July, 23:45

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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  1. 29 July, 01:51
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    the correct answer is 40%

    make 20*5=100, which is total and 8*5 makes 40
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