A group of students is taking a CPR course. The total cost for the course is $275. The room in which the course will be held can hold a maximum of 25 people, including the instructor. What is the minimum number of students needed to take the course so that the cost per student will be less than $15? (1 point) Responses 11 17 18 19
Let's assume that there will be x students taking the course. The cost per student can be found by dividing the total cost of the course by the number of students: $275 / x.
We need to find the minimum value of x where $275 / x < $15.
Dividing both sides of the inequality by $15 gives us: x > $275 / $15.
Calculating $275 / $15 gives us approximately 18.33.
The minimum number of students needed to take the course so that the cost per student will be less than $15 is 19 (since we cannot have a fraction of a student). Therefore, the answer is 19.