Mathematics, 21.09.2019 19:30 Josephcastillo6403

How many pounds of brazilian coffee costing $ 6 per pound must be mixed with 27 lbs of columbian coffee costing $ 4 per pound to produce a mixture costing $ 4.5 per pound.

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How many pounds of brazilian coffee costing $ 6 per pound must be mixed with 27 lbs of columbian cof...