Solve the system of linear equations.-0.5x - 0.5y = -3.50.4x - 0.5y = 1.9
A. (5.4, 3.3)
B. (9.3, 5.5)
C. (6,1)
D. No solution
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Solve the system by graphing. 4x + y = 2016x + 4y = 80
A. No solution B. (0, 20) C. (5, 0) D. Infinite number of solutions
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The scores on a 30-point multiple-choice exam are given in the following frequency table:
The third quartile on the exam is
A. 27.5. B. 28. C. 26.5. D. 27. E. none of these
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Solve the problem.In how many ways can a class president and a class secretary be chosen from a group of 8 candidates?
A. 336 B. 56 C. 16 D. 15
Mathematics