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Mathematics, 27.03.2020 23:19 kaleb6816
A merchant has coffee worth $20 a pound that she wishes to mix with 90 pounds of coffee worth $60 a pound to get a mixture that she will sell for $50 a pound. How many pounds (lb) of the $20 coffee should be used?
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A merchant has coffee worth $20 a pound that she wishes to mix with 90 pounds of coffee worth $60 a...
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