SOLUTION: A cable company charges $75 for installation plus $20 per month. Another cable company offers free installation but charges $35 per month. For how many months of cable service wo
Question 224501: A cable company charges $75 for installation plus $20 per month. Another cable company offers free installation but charges $35 per month. For how many months of cable service would the total cost from either company be the same?
a)2 b) 3 c) 5 d) 7 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A cable company charges $75 for installation plus $20 per month. Another cable company offers free installation but charges $35 per month. For how many months of cable service would the total cost from either company be the same?
a)2 b) 3 c) 5 d) 7
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1st Co Eq: A(x) = 75 + 20x where x is # of months of service
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2nd Co Eq; B(x) = 35x where x is # of months of service
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Equation:
When does A(x) = B(x)
75+20x = 35x
15x = 75
x = 5 months
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Cheers,
Stan H.
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