Mathematics, 12.02.2020 03:26 moongirl4791
A collection of 8 backpacks has a mean weight of 14 pounds. A different collection of 12 backpacks has a mean weight of 9 pounds. What is the mean weight of the 20 backpacks?
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A collection of 8 backpacks has a mean weight of 14 pounds. A different collection of 12 backpacks h...
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