Solve by the substitution method.8x + 9y = -11-2x + 7y = -25
A. (-11, -25)
B. (1, -2)
C. (2, -2)
D. (2, -3)
Answer: D
You might also like to view...
Solve the problem.Two pipes can be used to fill a pool. Working together, the two pipes can fill the pool in 
The larger pipe can fill the pool in 5 hours less time than the smaller pipe can alone. Find the time to the nearest tenth of an hour it takes for the smaller pipe working alone to fill the pool.
A. 6.2 hours B. 11.3 hours C. 6.3 hours D. 11.2 hours
Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary.2x - y = 4-4x +2y = -8
A. {(x, 4 - 2x)} B. {(x, 4x - 4)} C. ? D. {(x, 2x - 4)}
Write the linear system corresponding to the reduced augmented matrix.
A. x1 = -4, x2 = t + 6, x3 = t for any real number t B. No Solution C. x1 = 4, x2 = -t + 6, x3 = t for any real number t D. x1 = 4, x2 = t + 6, x3 = 0
Find the indicated term of the geometric sequence.8th term of 1, 
, 
, ...
A. a8 = 
B. a8 = 
C. a8 = 
D. a8 = 