Solve the system of equations by the substitution method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.7x - 7y = -56-5x - 5y = -50
A. Infinitely many solutions; dependent
B. (1, 10)
C. (1, 9)
D. (0, 10)
Answer: C
Mathematics
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A. r cos ? = 5 B. sin ? = 5 C. r sin ? = 5 D. r = 5
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Solve the problem.Alex always takes $10 more than he anticipates needing on a date. Tonight Alex takes $30 on his date with Judith. Use the equation 
to find the amount of money, x, Alex anticipates needing for this date.
A. $40 B. $30 C. $10 D. $20
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Graph the given line.x - 6 = 0
A. 
B. 
C. 
D. 
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Solve.x + (-19.3) = -34.09
A. -14.71 B. -17.91 C. -14.79 D. -15.49
Mathematics