SOLUTION: 2.6 52) The electricity costs of a business decreased from 12,000 one year to 10,920 the next. what is the rate of decrease?

Question 40693: 2.6 52)

The electricity costs of a business decreased from 12,000 one year to 10,920 the next. what is the rate of decrease?
Found 2 solutions by Nate, checkley71:
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
(change of cost)/(change of time)
(12000 - 10920)/(0 - 1)
-1080/1
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
(12,000-10,920)/12,000 OR 1,080/12,000 OR 9% REDUCTION
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