Linear Equations

Question

The Bridgeport water department has a monthly service charge of $10.80 and a usage charge of $2.22 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 = 2.22x + 10.80

 B. 

y = 13.02x

 C. 

y = 0.0222x + 10.80

 D. 

y = 2.22x - 10.80

Answer 1

The answer is A.