Question 1179786
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The used energy per day is

    
    750*0.75 + 2500*8 = 20562.5 watts-hours,  or   20.5625 kilowatts-hours.



(Here 0.75 stands for 45 minutes = 3/4 of an hour).



The used energy per year is  20.5625 kWh * 365  days.


The cost per year is  0.157 * 20.5625 * 365  dollars.


Use your calculator.
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