Question

Jake's water bill is $22.20 per month plus $2.30 per ccf (hundred cubic feet) of water. What is the maximum number of ccf Jake can use if he wants his bill to be no more than $61.00?

Answer 1

16 ccf

Explanation:

According to the statement we can establish the following equation:

`22.2+2.3x=61`

Where x is the maximum number of ccf, we solve for x:

`\begin{gathered} 2.3x=61-22.2 \\ x=(38.8)/(2.3) \\ x=16.8\text{ ccf} \\ x\cong16\text{ ccf} \end{gathered}`

The maximum number is 16 ccf, since if it is 17 ccf, the bill exceeds $61