Question

Assume the local fitness club charges a membership fee of $30 per month for unlimited use of the exercise equipment plus an additional fee of $12 for every instructor-led exercise class you attend. 1. Express the monthly cost of belonging to the fitness club as a cost equation. 2 What is your expected cost for a month in which you attend eight instructor-led classes? 3. If your attendance doubles to 16 classes per month, will your total cost for the month double? Explain. 1. Express the monthly cost of belonging to the fitness club as a cost equation. Choose the cost equation that expresses the monthly cost of belonging to the fitness club. 2. What is your expected cost for a month in which you attend eight instructor-led classes? If you attend eight classes in a month, your total cost for the month will be $ 3. If your attendance doubles to 16 classes per month, will your total cost for the month double? Explain. If your attendance doubles to 16 classes per month, your total cost for the month double. The portion of the bill doubles from but the portion of the bill stays constant. If you attend 16 classes in a month, your total cost for the month will be $ Choose from any list or enter any number in the input fields and then continue to the next question. ?

Answer 1

Let 'a' be the number of insturctor led excercises you attend in a month.

1)Total cost = $30 + 12a

2)If you attend 8 classes a month,

Cost = 30 + 12 x 8

Cost = 30 + 96

Cost = $126

3) Cost for 16 classes = 30 + 12 x 16

= 30 + 192 = $222

If your attendance doubles to 16 classes per month , your total cost for the month will less than double.

The variable portion of the bill doubles from 96 to 192 , but the Fixed portion of the bill stays constant.

If you attend 16 classes a month the bill will be $222