the cost for natural gas is 15000 per cubic feet at a cost of 1.02ccf how much would a customer pay if they used 15000 cubic feet of gas per billing cycle

Question

calculate the cost of gas bill. 

Residential $7.95 First 5,000 Cubic Feet $1.26 per CCF
Next 15,000 Cubic Feet $1.02 per CCF

Over 20,000 Cubic Feet $0.99 per CCF

on a house that is 1,124 square feet in size 

Answer 1

The customer uses 15000 cubic feet of gas.

 

Per the pricing schedule, the first 5000 costs $7.95.

 

The remaining 10000 costs $1.26 per CCF. [not enough to get the 15k discount of $1.02]

1CCF = 100 cubic feet, so  10000/100 = 100 CCF

That's another $126

 

So the total bill before taxes and fees is $133.95