Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.The manager of a coffee shop has one type of coffee that sells for $7 per pound and another type that sells for $15 per pound. The manager wishes to mix 60 pounds of the $15 coffee to get a mixture that will sell for $9 per pound. How many pounds of the $7 coffee should be used?
A. 240 pounds
B. 120 pounds
C. 180 pounds
D. 90 pounds
Answer: C
Mathematics
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