At Silver Gym, membership is $35 a month and personal training sesdsions are $25 each. At Fit Factor membership is $75 a month, and personal training sessions are $15 each. In one month how many personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?

owlface13 Feb 14, 2017

#1**0 **

Total cost of Silver Gym = 35 + 25N where N is the number of sessions

Total cost of Fit Factor = 75 + 15N

To find out when the costs are equal....set the equations equal

35 + 25N = 75 + 15N subtract 15N from both sides

35 + 10N = 75 subtract 35 from both sides

10N = 40 divide both sides by 10

N = 4 sessions

CPhill Feb 14, 2017