Answer:
104.4
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Answer: 110000
Step-by-step explanation:
Answer:$18
Answer: B.
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18. one solution 19. No solutions
d = w + 3 (first equation)
2d = 2w + 3 (second equation).
The second equation is equivalent to the first one.
In other words, two equations carry the same information as the first one, not more.
In the language of linear algebra, the system is dependent
