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

ANSWER:

16 ccf

STEP-BY-STEP 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:

$\begin{gathered} 2.3x=61-22.2 \\ x=\frac{38.8}{2.3} \\ x=16.8\text{ ccf} \\ x\cong16\text{ ccf} \end{gathered}$

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