Jake's water bill is $28.80 per month plus $2.10 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 $63.00?

Answer:the maximum number of ccf Jake can use is 16.29 ccf

Step-by-step explanation:

Let x represent the volume of water in hundred cubic feet that Jake uses in a month.

Jake's water bill is $28.80 per month plus $2.10 per ccf (hundred cubic feet) of water. This means that the total cost of using x ccf of water for a month would be

28.80 + 2.1x

Therefore, the the maximum number of ccf that Jake can use if he wants his bill to be no more than $63.00 would be

28.80 + 2.1x ≤ 63

2.1x ≤ 63 - 28.8

2.1x ≤ 34.2

x ≤ 34.2 / 2.1

x ≤ 16.29 ccf