SOLUTION: Electricity costs 8 cents per kilowatt-hour. Every day, 365 days per year, a 100-watt light bulb burns for one hour. How much does this cost annually?

Question 269108: Electricity costs 8 cents per kilowatt-hour. Every day, 365 days per year, a 100-watt light bulb burns for one hour. How much does this cost annually?
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1 hr/day) x (365 days/yr) = 365 hrs/yr
(8 cents/kw-hr) x (1 kw/1000 w) x (365 hr/yr) x (100 w) =
cents/yr
cents/yr
It costs $2.92 per year

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
100 watt-hrs = 0.1 KWh per day
--> 36.5 KWh per year
8*36.5 = $2.92 per year

RELATED QUESTIONS
In a certain city, electricity costs $0.10 per kW�h. What is the annual cost for... (answered by ikleyn,MathTherapy)
For some reason these problems keep tripping me up...please help...Thanks! Compact... (answered by liz_gcmama)
Your utility company charges 10 cents per kilowatt-hour of electricity. Complete... (answered by josgarithmetic,ikleyn)
Need Help When you went on a vacation,you left a lamp on in the living room that... (answered by richard1234)
It costs $0.008 per hour to run a 100-watt light bulb. It costs $0.015 per hour to run a... (answered by ikleyn)
Parents sometimes yell at their children for leaving the light on in their bedroom when... (answered by Theo)
A light bulb consumes watt-hours per day. How many watt-hours does it consume in days... (answered by solver91311)
A light bulb consumes 960 watt-hour per day. How long does it take to consume 4480... (answered by stanbon)
A light bulb consumes 1440 watt-hours per day. How many watt-hours does it consume in 4... (answered by rfer)