True or false: the total operating costs = fixed costs – variable cost.

The equation for total operating costs is incorrect, then the answer is False. The total operating cost is the summation of the two components namely fixed costs and variable costs. Therefore, the equation of total operating costs should be the same as shown below:
Operating costs=fixed costs+variable costs

12

Step-by-step explanation:

1. the rule: 3:6=6:x;

2. if 3/6=6/x, then x=12.