Final answer:
To calculate the cost of using a television for 50 hours a month, multiply the power usage (0.5 kW) by the time (50 hours) and the rate (10 cents per kWh for peak hours, 6 cents per kWh for off-peak hours). The cost for peak hours is $2.50, whereas for off-peak hours, it is $1.50, resulting in savings of $1.00 during off-peak hours.
Step-by-step explanation:
To compare the cost of using a television during peak hours and off-peak hours, we use the following formula for the cost of electricity:
Cost = Power (kW) × Time (h) × Rate (cents/kWh)
Given that the television uses 0.5 kW of energy, for peak hours the calculation would be:
Cost (Peak Hours) = 0.5 kW × 50 h × $0.10/kWh
= $2.50
For off-peak hours, the calculation is:
Cost (Off-Peak Hours) = 0.5 kW × 50 h × $0.06/kWh
= $1.50
Therefore, using a television for 50 hours a month during off-peak hours saves $1.00 compared to using it during peak hours.