Question

Gene has a gasoline budget of $250 per month. He uses an average of $6 of gasoline each day he drives. Which of the following equations represents how much money is left in his gasoline budget after x days of driving?

A.
y = 250x - 6
B.
y = 250 - 6x
C.
y = 250 + 6x
D.
y = 6x - 250

Answer 1

B.
y = 250 - 6x

He starts with 250, and loses 6 for every day.

Answer 2

It would be B, because 6 dollars a day would mean 6x for more than 1 day