Will give !

the bridgeport water department has a monthly service charge of $13.20 and a usage charge of $1.42 for every 100 cubic feet of water. which of the following equations can be used to determine the monthly water bill of a bridgeport resident?

(let x represent the amount of water used in hundreds of cubic feet and y represent the monthly cost.)

a. y = 1.42x - 13.20

b. y = 14.62x

c. y = 1.42x + 13.20

d. y = 0.0142x + 13.20

c

Step-by-step explanation:

It is measured in the same unit as the original unit, so x will be 1.42x

Add the service charge as it is a constant addition, and we end up with:

y = 1.42x + 13.20

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: