Question

Harmie's average monthly electricity usage is 975 kWh. Using a 30 day month, what is her annual electricity usage and her average daily usage.

Answer 1

According to the information given in the exercise, you need to use a 30 day month and her average monthly electricity usage is:

`975kWh`

Therefore, in order to calcualte her average daily usage, you need to divide her average monthly electricity usage by 30:

`DailyUsage=(975kWh)/(30)=32.5kWh`

Knowing that there are 12 months in 1 year, you can find her annual electricity usage as following:

`AnualUsage=(975kWh)(12)=11,700kWh`

The answer is:

`\begin{gathered} DailyUsage=32.5kWh \\ AnualUsage=11,700kWh \end{gathered}`