davidleew24
22.11.2019 •
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. what percent of the weight of the bar was copper? round your answer to the nearest tenth if necessary.
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Ответ:
the correct answer is 40%
make 20*5=100 , which is total and 8*5 makes 40
Ответ:
I would say 720
Step-by-step explanation:
one possibility that comes to my head is stack them on top of each other in many ways