he monthly cost for household water is computed based on the amount of water used in thousand gallons: kgals. A local water company charges a monthly service fee of $20 and then charges $1.25 for each kgal of water used up to 10 kgals. To discourage excessive use, each kgal of water beyond 10 kgals is charged at rate of $2.75 per kgal. a) Write a piecewise defined function for the monthly cost of household water, C, in terms of the amount of water used, x kgal. b) Using your model, determine the monthly water bill if 9 kgals of water is used by a household. c) Using your model, determine the monthly water bill if 14 kgals of water is used by a household. d) If a monthly water bill was $75, how much water did this household use (according to your model)? Be precise! Your answer should be accurate to 3 decimal places
The monthly cost for household water is computed based on the amount of water used in thousand gallons: kgals. A local water company charges a monthly service fee of $20 and then charges $1.25 for each kgal of water used up to 10 kgals. To discourage excessive use, each kgal of water beyond 10 kgals is charged at rate of $2.75 per kgal.
a) Write a
b) Using your model, determine the monthly water bill if 9 kgals of water is used by a household.
c) Using your model, determine the monthly water bill if 14 kgals of water is used by a household.
d) If a monthly water bill was $75, how much water did this household use (according to your model)? Be precise! Your answer should be accurate to 3 decimal places.
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