Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 80 pounds of coffee worth 
a pound to get a mixture that can be sold for 
a pound. How many pounds of the 
coffee should be used?
A. 48 pounds
B. 16 pounds
C. 8 pounds
D. 96 pounds
Answer: B
You might also like to view...
Simplify.(2x4y2)2(3x5y4)2
A. 6x9y12 B. 36x18y12 C. 36x13y10 D. 6x18y12
Perform the indicated operation.Find the sum of (8 + 4n7 - 3n5) and 
A. 32n12 B. 13n7 + 6n5 + 13 C. 17n7 + 13n5 + 2 D. 13 + 6n7 + 13n5
Solve the problem.A computer manufacturer has three outlet stores that sell its four computer systems. The following table shows the numbers of systems sold by the three stores in July.
The prices of the systems are: $1200 for System 1, $1500 for System 2, $1600 for System 3, and $1800 for System 4. Write the information from the table as a 4 x 3 matrix B. Write a row matrix A for which the entries represent the prices for the systems. If 
find c13 . What does this entry of C represent?
A. c13 = 164,000. c13 represents the total sales at Store 3 in July. B. c13 = 144,000. c13 represents the sales of System 3 at all stores in July. C. c13 = 124,000. c13 represents the total sales at Store 3 in July. D. c13 = 154,000. c13 represents the total sales at Store 1 in July.
Solve. Write results using scientific notation.The national debt of a small country is $7,150,000,000 and the population is 2,304,000. What is the amount of debt per person?
A. $3.10 x 106 B. $3.10 x 103 C. $3.10 D. $31.00 x 102