If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.-0.1x + 0.3y = 0.1-0.9x - 0.1y = 6.5

A. (-8, -1)
B. (-7, -2)
C. (-2, -7)
D. (-7, -1)


Answer: B

Mathematics

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A. -14x3 B. 14 C. 14x3 D. 1

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Solve for x.-0.08x + 0.15(900 - x) = 0.27x

A. 67.5 B. 270 C. 540 D. 675

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The seniors at a high school are voting for where to go for their senior trip. They are deciding on Apple Valley (A), Bend Canyon (B), Crystal River (C), or Danger Gap (D). The results of the preferences are: (DABC) (ACBD) (BCAD) (CBDA) (CBAD) 17 26 16 26 17 ? Who wins using the pairwise comparison method? Answer A, B, C, or D.Does this violate the Condorcet criterion? Answer yes or no.

What will be an ideal response?

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Find the LCD for the list of rational expressions. , 

A. (x + 2)(x - 4)(x + 1) B. (x - 2)(x + 4)(x + 1) C. (x + 4)(x + 1) D. (x - 2)(x + 4)

Mathematics