
Concept explainers
To find: The range of uses of electricity last year in

Answer to Problem 115AYU
The range of energy unit is
Explanation of Solution
Given information:
Charge for electricity in January
Last year bills ranged from
Calculation:
Charge for
Assume the energy unit be
For the bill amount of
For the bill amount of
Therefore, the range of energy unit is
Chapter A Solutions
Precalculus
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