Mathematics

Mathematics, 11.09.2019 18:10, ezellcarly

2. suppose your utility company charges 10cents per kilowatt-hour of electricity. how much does it cost to operate a chandelier with five 75-watt light bulbs for 90 minutes?

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Mathematics, 20.09.2019 03:10, chloerojassbusiness

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Mathematics, 09.10.2019 03:10, moneyyfletcher

A60-watt light bulb uses 60 watt hours of electricity in 1 hour. suppose everyone in the united states left one unneeded 60 watt light bulb on for one hour every day for a year. 9. electricity is billed in kilowatt hours. so 60 watt hours is equal to sixty divided by one thousand. express the electricity used by a 60-watt light bulb in one hour in kilowatt hours in scientific notation.

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Mathematics, 30.10.2019 07:31, kaileyy06

Company charges 10 cent per kilowatt an hour of electricity. how much does it cost to operate a chandelier with five 75 watt light bulbs for 90 minutes?

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