Cost of Natural Gas In May 2006, Peoples Energy had the
Chapter , Problem 3.4.49(choose chapter or problem)
Cost of Natural Gas In May 2006, Peoples Energy had the following rate schedule for natural gas usage in single-family residences: Monthly service charge $9.45 Per therm service charge 1st 50 therms $0.36375/therm Over 50 therms $0.1 1445/therm Gas charge $0.7958/therm (a) What is the charge for using 50 therms in a month? (b) What is the charge for using 500 therms in a month? (c) Construct a function that relates the monthly charge C for x therms of gas. (d) Graph this function. Source: Peoples Energy, Chicago, Illinois, 2006
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