Solve the problem.The manager of a coffee shop has one type of coffee that sells for $8 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 $11 per pound. How many pounds of the $8 coffee should be used?
A. 70 lb
B. 140 lb
C. 80 lb
D. 40 lb
Answer: C
Mathematics
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Solve.Attendance at a football game was reported to be 15,487. Round this number to the nearest thousand.
A. 16,000 B. 15,487.0000 C. 15,500 D. 15,000
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Find all solutions of the equation in the interval [0, 2?).3 cot
- 
= 0
A. 
, 
B. 
, 
C. 
, 
D. 
, 
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Solve the equation.8r2 = 2r
A. 
B. 0, 4
C. 0, 
D. 0
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