Ronnie wants to lower his utility bills to save money on his monthly expenses. He discovers that if he replaces his water heater with a solar water heater his monthly utility bills can decrease around 50% to 85%. At the end of the year Ronnie wants to calculate the percentage his new solar water heater saved him in the utility bills compared to last year. Ronnie's total utility expenses for this year are $862.40 and last year the utility expenses were $1935.67. What percentage did Ronnie save on his utlility bills by switching to a solar water heater?
Answer
A
44.5%
B
97.8%
C
55.4%
D
67.5%
Explanation
Ronnie saved $1,935.67 − $862.40 = $1,073.27 compared with last year. Divide the savings by last year’s expenses and multiply by 100: ($1,073.27 ÷ $1,935.67) × 100 ≈ 55.4%. The correct choice is 55.4%.
AI-written and checked against the verified answer.

Question

Ronnie wants to lower his utility bills to save money on his monthly expenses. He discovers that if he replaces his water heater with a solar water heater his monthly utility bills can decrease around 50% to 85%. At the end of the year Ronnie wants to calculate the percentage his new solar water heater saved him in the utility bills compared to last year. Ronnie's total utility expenses for this year are $862.40 and last year the utility expenses were $1935.67. What percentage did Ronnie save on his utlility bills by switching to a solar water heater?

Answer

A

44.5%

B

97.8%

C

55.4%

D

67.5%

Explanation

Ronnie saved $1,935.67 − $862.40 = $1,073.27 compared with last year. Divide the savings by last year’s expenses and multiply by 100: ($1,073.27 ÷ $1,935.67) × 100 ≈ 55.4%. The correct choice is 55.4%.

AI-written and checked against the verified answer.

Revolt · Accepted Answer

55.4%

Topic Test

Explanation

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