Question

jakes water bill is 24.80 per month plus 2.20 per CCF of water. what is the maximum number of CCF jake can use of he wants his bill to be no more than 60

Answer 1

Jake can consume maximum of 16 CCF of water so that his monthly bill will not be more than 60 units of price.

Solution:

Given that jakes water bill is 24.80 per month plus 2.20 per CCF of water used by him.

So 28.80 is fixed amount and remaining amount depends on number of CCF of water used.

We need to calculate maximum number of CCF, so that his bill should not be more than 60.

Lets assume maximum number of CCF which can be used while maintaining the limit of bill as 60 = "x"

So bill for the month = fixed amount + "x" multiplied by price of 1 CCF

60 = 24.80 + 2.20(x)

60 = 24.80 + 2.20 x

On Solving above equation for x

60 – 24.80 = 2.20x

2.20x = 35.2

x =
`(35.2)/(2.20)` = 16

Hence Jake can consume maximum of 16 CCF of water so that his monthly bill will not be more than 60 units of price.

Answer 2

16 CCF

Explanation:

You have 24,8 that you have to pay no matter the consumption, then you have the difference between 60 and 24,8 to use for the consumption

60-24.8=35,2

Every CCF is 2,2 then the maximum CCF is:

35,2/2,2

=16 CCF