Solve the problem.The manager of a coffee shop has one type of coffee that sells for $5 per pound and another type that sells for $12 per pound. The manager wishes to mix 60 pounds of the $12 coffee to get a mixture that will sell for $7 per pound. How many pounds of the $5 coffee should be used?
A. 150 lb
B. 105 lb
C. 210 lb
D. 75 lb
Answer: A
Mathematics
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