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25 November, 13:31

An ac unit uses 3500 watts or power. If it runs for 10 hours each day and the utility company charges $0.13 per kWh, how much does it cost to run the ac for a month

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  1. 25 November, 14:31
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    Cost = (3500 W) · (1 kw/1000 W) · (10 hrs/day) · (30 day/month) · ($0.13/kw-hr)

    Cost = (3500·1·10·30·0.13 / 1000) · (W·kW·hr·da·$ / W·da·month·kw·hr)

    Cost = 136.50 $/month
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