A coffee merchant combines coffee costing $4.50 per pound with coffee costing $4.00 per pound. How many pounds of each should be used to make 30 lb of a blend costing $4.20 per pound?
A coffee merchant combines coffee costing $4.50 per pound with coffee costing $4.00 per pound. How many pounds of each should be used to make 30lb of a blend costing $4.20 per pound?
Let x pounds of the 45...
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