Calculate the cost of operating a 65 W light bulb continuously for a 30-day month when electrical energy costs $0.23/kW·h.

$ 1

Cost =(65•10^-3) •30•24•0.23 =$10.76

To calculate the cost of operating a 65 W light bulb continuously for a 30-day month, we need to first determine the total energy consumption in kilowatt-hours (kWh).

Step 1: Convert the power consumption from watts to kilowatts:
65 W = 65/1000 kW = 0.065 kW

Step 2: Calculate the total energy consumption:
Energy consumption (kWh) = Power consumption (kW) x Time (hours)

In this case, the time is 30 days, but since we need to calculate in hours, we multiply it by 24 (since there are 24 hours in a day):
Time (hours) = 30 days x 24 hours/day = 720 hours

Energy consumption (kWh) = 0.065 kW x 720 hours = 46.8 kWh

Step 3: Calculate the cost of the energy consumption:
Cost = Energy consumption (kWh) x Cost per kilowatt-hour

The cost per kilowatt-hour is provided as $0.23/kWh.

Cost = 46.8 kWh x $0.23/kWh = $10.764

So, the cost of operating a 65 W light bulb continuously for a 30-day month, with an electricity cost of $0.23/kWh, is approximately $10.76.

To calculate the cost of operating a 65 W light bulb continuously for a 30-day month, we need to consider the following steps:

Step 1: Convert the power of the light bulb from Watts to kilowatts.
Since the cost of electrical energy is given in kilowatt-hours (kW·h), we need to convert the power from Watts to kilowatts.
65 W = 65/1000 kW = 0.065 kW

Step 2: Calculate the energy consumed by the light bulb.
To calculate the energy consumed, we need to multiply the power of the light bulb by the time it operates.
Energy consumed = power x time
Since we are operating the light bulb continuously for a 30-day month, which has 24 hours in a day, the total time the light bulb operates in a month is:
30 days x 24 hours/day = 720 hours

Energy consumed = 0.065 kW x 720 hours = 46.8 kW·h

Step 3: Calculate the cost of the energy consumed.
To calculate the cost, we need to multiply the energy consumed by the cost of electrical energy.
Cost = energy consumed x cost of electrical energy

Cost = 46.8 kW·h x $0.23/kW·h

Finally, we can calculate the cost of operating the 65 W light bulb continuously for a 30-day month.
Cost = 46.8 kW·h x $0.23/kW·h = $10.76

Therefore, the cost of operating a 65 W light bulb continuously for a 30-day month, with electrical energy priced at $0.23/kW·h, would be $10.76.