177
QuizMultiple Choice

Topic Test

Question 177 • Financial Math - MA2007

Hanna wants to calculate the cost of her electric bill. She is on a standard use plan that has a graduated fee schedule. Standard Use Plan8.5 cents/kWh for the first 400 kWh12 cents/kWh for the next 400 kWh14.5 cents/kWh for anything over 800 kWhHow much will her bill be if she uses 1,465 kWh? Round to the nearest dollar.

Answer
A
$82
B
$96
C
$178
D
$144

Explanation

The first 400 kWh cost 400 × $0.085 = $34, and the next 400 kWh cost 400 × $0.12 = $48. The remaining 1,465 − 800 = 665 kWh cost 665 × $0.145 = $96.425. The total is $34 + $48 + $96.425 = $178.425, which rounds to $178, choice c.

AI-written and checked against the verified answer.

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