Question

An electric company charges $10.75 per month plus $0.38 per kilowatt-hour (kWh) for the first 250 kWh used per month and $0.21 per kWh for anything over 250 kWh used.

a. How much is owed for using 180 kWh per month?

Answer 1

The total amount owed for using 180 kWh in a month is $79.15, calculated by adding the fixed fee of $10.75 to the variable charge of $0.38 per kWh for 180 kWh, totaling $68.40.

Step-by-step explanation:

To calculate the total amount owed for using 180 kWh per month, we first consider the electric company's charges. The company charges a fixed fee of $10.75 per month plus $0.38 per kilowatt-hour for the first 250 kWh. Since 180 kWh is less than 250 kWh, the variable charge applies only to the 180 kWh used.

The calculation for the variable charge is straightforward:

• 180 kWh × $0.38/kWh = $68.40

Now, we add the fixed monthly fee:

• $10.75 (fixed fee) + $68.40 (variable charge for 180 kWh) = $79.15

Therefore, the total amount owed for using 180 kWh in a month would be $79.15.