Question

LA Fitness charges $50 to be a member and $2 each

time you attend the gym. 24 Hour Fitness charges $4
each time you attend the gym and $30 to be a
member.
After how many visits to the gym will the cost be the
same?
10 visits
9 visits
6 visits
7 visits
8 visits

Answer 1

10 visits

Explanation:

Let's model the expressions:

• LA Fitness = 50 + 2x
• 24 Hour Fitness = 30 + 4x

Now set them to equal each other to find x, the number of visits

50 + 2x = 30 + 4x Subtract 2x

50 = 30 + 2x Subtract 30

20 = 2x Divide by 2

10 = x

After 10 visits to the gym, the cost will be the same.