Question

q1 a gym charges a joining fee of $20 and $15 per month for membership. which of the following equations represents the total cost, c, for m months of membership? 2 marks
○ $c = 20m + 15$
○ $c = 15m + 20$
○ $c = 15 + 20m$
○ $c = m + 35$

Explanation:

Step1: Identify fixed and variable costs

The joining fee (\$20) is a fixed cost (one - time), and the monthly fee (\$15 per month) is variable (depends on \(m\) months).

Step2: Formulate the cost equation

The total cost \(C\) is the sum of the fixed cost and the variable cost. The variable cost for \(m\) months is \(15\times m = 15m\), and the fixed cost is 20. So \(C=15m + 20\).

Answer:

B. \(C = 15m+20\) (assuming the second option is labeled as B, with the equation \(C = 15m + 20\))