Question

Nick wants to join a gym, and he is deciding between two options. Infinity Fitness charges 45 per month, plus a one-time registration fee of20. The Power Zone charges 37.50 per month, plus a one-time registration fee of65. Which equation can you use to find m, the number of months it would take for the total cost at either gym to be the same?

1) 45m + 20 = 37.50m + 65
2) 45m + 20 = 37.50m - 65
3) 45m - 20 = 37.50m + 65
4) 45m - 20 = 37.50m - 65

Answer 1

The equation that expresses the total cost in terms of the number of students in a class is y = 50 + 20x.

Step-by-step explanation:

To find the equation that expresses the total cost in terms of the number of students in a class, we need to consider the fixed fee and the variable fee per student. In this case, Emma pays a fee of $50 per class and an additional $20 per student. So, the equation that expresses the total cost, y, in terms of the number of students, x, is:

y = 50 + 20x