SOLUTION: A gas company has the following rate schedule for natural gas usage in single-family residences: The monthly service charge $8.80 Per therm service charge 1st 25 therm

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Question 1176283: A gas company has the following rate schedule for natural gas usage in single-family residences:

The monthly service charge $8.80

Per therm service charge
1st 25 therms $0.6686/therm
Over 25 therms $0.85870/therm
What is the charge for using 25 therms in one month?
What is the charge for using 45 therms in one month?
Construct a function that gives the monthly charge C for x therms of gas.





Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Question States:
 C(25 therms) = $0.6686(25) = 16.72 
 C(45 therms) = 16.72 +  $0.85870(20) = $16.72 + $17.17 = $33.89

  for x ≥ 25
 C(x) = $0.6686(25) +  $0.85870(x - 25)) 

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