Question

Mr. Brown teaches music to children and is organizing a trek for the students of his class. He has the following breakdown of how much it would cost him per day of the trek. Campground rental: $200 per day Training Cost: $20 per student per day Food Cost: $30 per student per day Miscellaneous Expenses: $50 per student per day Trekking Gear Cost: $1,050 (one-time cost) Mr. Brown's total cost for conducting a 3-day trek with b students is represented by the expression below. Which statement best describes the coefficient of b?

It is Mr. Brown's daily cost per student, with training, food, and miscellaneous expenses.
It is Mr. Brown's daily cost per student for campground rental and the trekking gear.
It is Mr. Brown's total 3 day cost per student, with training, food, and miscellaneous expenses.
It is Mr. Brown's total cost per day for campground rental and the trekking gear.

Answer 1

the answer should be the third one.

Answer 2

Explanation:

Given that Mr. Brown teaches music to children and is organizing a trek for the students of his class.

His costs per student are: Training =20

Food cost=30

Miscellaneous = 50

Other costs depend on the number of days or fixed cost. That does not depend on the number of students.

Hence for b students the total cost pertaining to varying ones per student only should be considered.

Hence option 3 is right.