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Mathematics, 02.08.2019 22:50 kelsiee24

Coffee cafe makes 90 pounds of coffee that costs $6 per pound. the types of coffee used to make this mixture cost $7 per pound and $4 per pound. how many pounds of $7-per-pound coffee should be used in this mixture?

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Coffee cafe makes 90 pounds of coffee that costs $6 per pound. the types of coffee used to make this...
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