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02-01-2020
Physics

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a man has five 60w bulb and a 240w water heater in his apartment. if the bulb and water heater are switched on for four hours daily and the cost of electricity is $1.50 per kwh. calculate his bill for 30days.

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02-01-2020

Answer: $97.20

Explanation:

Convert 60w(x5 because he has 5 bulbs) and 240w to kw to get 0.3kw and 0.24kw and add these together to get 0.54kw. Next multiply 0.54kw with 4 for 4 hours which is 2.16kw then multiply this by 30 to get 64.8kw. Finally multiply 64.8kw by 1.50 to get $97.20

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