Electricity cost refers to the amount charged for the consumption of electrical energy. It depends on factors such as the power consumption of appliances, usage time, and the electricity rate.
Let's assume the following values:
Using the formula:
\[ \text{Energy Consumed} = \frac{1000 \times 5 \times 30}{1000} = 150 \text{ kWh} \]
\[ \text{Estimated Cost} = 150 \times 0.12 = 18 \text{ dollars} \]
The estimated cost is $18.