Mathematics, 17.07.2020 06:01 jazminjb83

A merchant has coffee worth $30 a pound that she wishes to mix with 20 pounds of coffee worth $60 a pound to get mixture that can be sold for $50 a pound. How many pounds of the $30 coffee should be used?

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A merchant has coffee worth $30 a pound that she wishes to mix with 20 pounds of coffee worth $60 a...

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