Tuesday, October 6, 2009

You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost

You have an 1800 watt hair dryer used for an average of 10 minutes per day at 9 cents Your utility company charges 9 cents per kilowatt-hour of energy. How much does it cost to run the hair dryer each day? each Year?



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

1800 watts = 1.8 Kilowatts



10 minutes = 1/6 hour



9 垄 = $0.09



1 year = 365 days



1.8 Kw X 1/6 h X $0.09 = $0.027/day (2.7垄/day)



$0.027/d X 365 d =$9.855/year



(sounds cheap to me, the others are trying you rip you off, they work for the power company.)



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

$2.16 dollars a day.$788.40 dollars a year



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

so, 1800 w=1.8kw



10minutes - 1.8kw



60minutes(1hour) - 1.8kw / 10 x 60



=10.8kw/h



therefore1 year=365 days



10.8kw/h X 365days=3942kw(total use of energy)



cost=3942kw/h X $0.09



=$354.78



the cost is $354.78 per year .



hope that will help u :)



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

$0.09 per kilowatt-hour



60 minutes=1 hour



since she used 10 minutes a day, then she used 1 hour in 60 days.



60 days=$0.09



There are 365 days in a year



365days/60 days=6.083 (with 3 repeated)



6.083*$0.09=$54.747=$54.75 per year.



For a day...



$0.09/10=$0.009=$0.01



She spends about 1 cent a day and about 54 dollars and 75 cents a year. If leap year its 54 dollars and 90 cents. =)



Mark as best answer please and thank you. =]



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

9 min/day x 365 days/year = minutes per year



minutes per year / minutes per hour (60) = hours per year



1800 watts / 1000 = kilowatts (1.8)



1.8 x hours per year = kilowatt hours per year



You should be able to figure it out from here



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

10 minutes is 1/6 of an hour....so each day you use 1800 Watts divided by 1/6 or 300/1000 or 3/10 kilowatt - hour. If you're charged 9 cents per kilowatt hour, your daily cost would be 2.7 cents. 2.7 cents times 365 = $9.85 a year.



And another method:



1800 watts for an hour would be 1.8 kilowatt hours. Every six days you would use 1.8 kilowatt hours. In a year, you use 60.83 times 1.8 or 109.4 kilowatt hours. At 9 cents per, that is $9.85 a year.



Either way, that's a pretty good bargain, don't you think?



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

1800 watts = 1.8 kw



1.8 * (10/60) = 1.8 * (1/6) = .3



.3 * 9 = 2.7 cents or $.027 a day



.027 * 365 = $9.855



ANS :



about $0.03 a day



about $9.86 a year



You have an 1800 watt hair dryer used 10 minutes a day at 9 cents per kilowatt hour of energy. cost per year?

1800 watt = 1.800 kilowatt



10 min per day = 10/60 hr per day = 1/6 h per day



1.800 kilowatt x 1/6 hr per day = .300 kilowatt-hr per day



--- --- --- --- ---



9 cents/kilowatt-hr x .300 kilowatt-hr per day = 2.7 cents per day



2.7 cents per day x 365 days each year = 985.5 cents each year = 985.5/100 dollars each year = $9.85 each year

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