Question

.. The number of hours of electricity
supplied to a city, during a week,
were 9, 12, 20, 16, 19, 18 and 21.
a. Find the average electricity
supply hours for the week.
b. In the next week, the average
electricity supply hours were
18 hours. How many more hours
of electricity was there in the
second week than the first week?
​

Answer 1

Ever wonder how much it costs to operate items in your home? Use this formula to calculate your cost per kWh.

(Wattage x Hours Used)/1,000 x Electric Rate ($/kWh) = Total Cost

Example: Find out the cost of a 100 watt light bulb burning 10 hours a day with a rate of $.08/kWh.

(100 watts x 10 hours)/1,000 = 1kWh or .$08 to operate

To calculate your $/kWh rate, use the formula below.

Your Monthly Total Electric Bill Cost/Your Total kWh (consumption) for the Month = $/kWh Rate

Example: Find out the cost from a $55 electric bill with 650 kWh used during the billing period.

$55/650 kWh = $0.846/kWh up

Step-by-step explanation:

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