Find the unknown in each percent question.5% of 300 is what number?
A. 150
B. 15
C. 0.15
D. 1.5
Answer: B
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State the linear programming problem in mathematical terms, identifying the objective function and the constraints.A firm makes products A and B. Product A takes 2 hours each on machine L and machine M; product B takes 4 hours on L and 2 hours on M. Machine L can be used for 8 hours and M for 7 hours. Profit on product A is $6 and $7 on B. Maximize profit.
A. Maximize 6A + 7B Subject to: 2A + 2B ? 8 2A + 4B ? 7 A, B ? 0. B. Maximize 7A + 6B Subject to: 2A + 2B ? 8 2A + 4B ? 7 A, B ? 0. C. Maximize 6A + 7B Subject to: 2A + 2B ? 8 2A + 4B ? 7 A, B ? 0. D. Maximize 6A + 7B Subject to: 2A + 4B ? 8 2A + 2B ? 7 A, B ? 0.
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.A chemical is 78% pure. In 760 grams of the chemical, how much is pure?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Evaluate the expression without using a calculator.(-1)2/5
A. 0
B. -1
C. 1
D. - 
Solve. Write a mixed numeral for the answer.A nail 6
inches long is driven into a board 1
inches thick. How much of the nail protrudes from the other side of the board?
A. 
in.
B. 
in.
C. 4
in.
D. 7 in.