Question
lectricity.
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Val’s whole-house central air conditioner uses 3,000 watts when running. Val runs
the AC 4 hours per summer day. Electricity costs ( 10 cents)/( kilowatt-hour). How
much does Val’s AC cost to run for a summer month of 30 days?
Jump to level 1
Val’s whole-house central air conditioner uses 3,000 watts when running. Val runs
the AC 4 hours per summer day. Electricity costs ( 10 cents)/( kilowatt-hour). How
much does Val’s AC cost to run for a summer month of 30 days?
Ask by Reed Barrett. in the United States
Dec 19,2024
Upstudy AI Solution
Tutor-Verified Answer
Answer
Val’s AC costs $36 to run for a 30-day summer month.
Solution
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Beyond the Answer
To find the cost of running Val’s AC for a summer month, first, we need to calculate the daily energy usage. The AC uses 3,000 watts, which is 3 kilowatts (since 1,000 watts = 1 kilowatt).
Daily energy usage = Power (in kW) × Time (in hours) = 3 kW × 4 hours = 12 kWh.
Now, for 30 days in a month, the total energy usage would be:
Total energy for 30 days = Daily energy usage × 30 days = 12 kWh × 30 = 360 kWh.
Total energy for 30 days = Daily energy usage × 30 days = 12 kWh × 30 = 360 kWh.
Finally, we calculate the cost:
Cost = Total energy usage × Cost per kWh = 360 kWh × $0.10 = $36.
Cost = Total energy usage × Cost per kWh = 360 kWh × $0.10 = $36.
So, Val’s AC costs $36 to run for a summer month of 30 days.
