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October 25, 2014

Homework Help: Science asap!!!

Posted by HS on Friday, September 20, 2013 at 1:17pm.

This question is about energy efficiency.
e.g.
more efficient
A=
B
C
D
E
Less Efficient

my question
An old freezer has an energy consumption per year of 350kwh
use the equation in the box to calculate the extra cost of using the old freezer for one year compared with using a new A rated freezer.

total cost= number of kilowatt-hours x cost per kilowatt-hour

show clearly how you work out you answer

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