Nonmembers must pay a $7 per day fee to use the pool. Members pay $2 per day and a membership fee of $150. How many days must you use the pool for the nonmember cost to equal the member cost?

Answer 1

d is days

Non member paid = Member paid

7 x d = (2 x d) + 150

7d = 2d + 150

7d - 2d = 150

5d = 150

d = 30

Non member will take 30 days so he pay the same amount of member

Answer 2

You would look at the different variables that are represented in the equation. One of the fees that is described is a $7 a day that can be represented as 7d, where d represents the number of days. The other fee represents $2 a day plus the one time membership fee of $150. This would be represented with the equation 2d +150.

From this point you would have the equation:

2d + 150 = 7d

Subtract 150 from both sides:

2d + 150 (-150) = 7d (-150)

Simplify:

2d = 7d - 150

Subtract 7d from both sides:

2d (-7d) = 7d -150 (-7d)

Simplify:

2d - 7d = -150

Simplify:

-5d = -150

Divide both sides by -5 and simplify:

d = 30

It would take 30 days for the prices to be the same between both the members and non-members.

Hope this helped!

Answer 3

d represents the number of days

50 + 2d = 7d

Can you solve for d and answer?