Question

Metropolis Gas and Power charges their customers a monthly service charge of $9.60 and a volume charge of $2.13 for every 100 cubic feet of natural gas used. Which of the following equations could be used to find Bruce Wayne's monthly gas bill?

(Let x represent the number of cubic feet of gas used in hundreds and y represent the total monthly cost.)
y = 11.73x
y = 2.43x + 9.60
y = 7.47x
y = 2.13x + 9.60

Answer 1

well since you know the charge is 2.13 for the cubic feet and they tell you to represent that as x which equation expresses that?

Answer 2

last one

Answer 3

yupp :)

Answer 4

can you help me with another problems

Answer 5

sure thing :)

Answer 6

4.
(1/6) (7x + 5) = 6x

Of the following choices, which would be the best first step for solving the equation?
Subtract 7x from each side.
Subtract 6 from each side.
Add 6 to each side.
Multiply each side by 6.

Answer 7

and thank you

Answer 8

how would you get rid of the fraction 1/6?

Answer 9

do you multiply

Answer 10

yupp :) multiplying 1/6 by 6 makes it 1

Answer 11

so is the last answer the answer

Answer 12

yuppers!