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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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