Question 816566: Video Store A charges $15 for membership and $2 for each video that is rented. Video store B does not charge a membership fee but charges $3.50 for each video that is rented.
Solve using elimination.
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! c = 2v + 15
c = 3.5v
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-c = -2v - 15
c = 3.5v
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add:
0 = 1.5v - 15
1.5v = 15
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v = 10
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Answer:
the net cost per video ($3.50) is exactly the same at both stores, if and only if exactly 10 videos are rented from either store.
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