Question

Please help! Math problem attached below.

Answer 1

Answer: D) $16.77

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Explanation:

The meter goes from 9854 to 0023. You can think of 0023 as 10023 (even though the meter only has 4 digits, so it rolls over to start over again).

So,

10023 - 9854 = 169

This means 169 kw hours of electricity are used for the month of December.

The first 100 kw hours costs $4.35

There are 169-100 = 69 kw hours left, and they cost $0.18 each, so we add on 69*0.18 = 12.42 getting 4.35 + 12.42 = 16.77