Monday, January 25, 2010

Systems of Equations

Corissa M. wants to join 1 of 2 gyms near her home. Each gym charges an enrollment fee for joining the gym and a monthly membership fee.

LA Fitness: Enrollment Fee: $55
Monthly Fee: $30


YMCA: Enrollment Fee: $95
Monthly Fee: $25

a. Calculate the cost of a 1-year membership at each gym. Explain all your work.

b. Write an equation for each gym's membership plan that describes the relationship between the number of months of membership (x) and the total cost (y).

c. Determine the number of months at which the total cost of membership at each gym will be the same amount of money. Explain why you did each each step.

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