The system of equation, if a b are arbitrary numbers x+2y-3z- a 2x+4y-6z 2a+2 has (A) No solutions regardless of values of a and
b (B) Infinitely many solutions regardless of values of a and b (C) a unique solution if a b-0 D) a unique solution regardless of values of a and b
1 answer:
Answer:
(A) No solutions regardless of values of a and b.
Step-by-step explanation:
Asumming that the system of equations is , the corresponding augmented matrix of the system is .
If two time the row 1 is subtracted to row 1, we get the following matrix
.
Then the system has no solutions regardless of values of a and b.
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Answer:
92 nickels and 64 dimes
Step-by-step explanation:
5n+10d=1100
n+d=156
n+2d=220
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n=92