Question

Each month, a certain water company charges a service fee of $20 plus $1.50 per 100 cubic feet of water used. In addition, the company charges 7% tax on the two charges. Which equation describes the relationship between y , the total of the charges and the tax, per month in dollars, and x , the number of cubic feet of water used that month?

(Answer Choices Below)

Answer 1

The equation which ultimately describes the relationship between the total charges and the tax, y and the number of cubic feet of water used, x is;

• y = 1.07(20 + 0.15x)

According to the question, we are required to determine which equation describes the relationship between y, the total of the charges and the tax, per month in dollars, and x , the number of cubic feet of water used that month.

Therefore, the company's charge before tax should be;

y = (20 + 0.15x)

However, since the company charges 7% tax on the two charges.

Ultimately, 107% of the normal charges is paid.

The equation which ultimately describes the relationship between the total charges and the tax and the number of cubic feet of water used is;

y = 1.07(20 + 0.15x)

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Answer 2

Answer:

y=1.07(20+0.015x

Step-by-step explanation: See above answer