Question

The cost for an upcoming field trip is $30 per student. The cost of the field trip, in dollars, is a function of the number of students.

Select all the possible outputs for the function defined by C(x)=30x
where x is the number of students going on the fieldtrip.

(1 point)
Responses

100
100

90
90

30
30

20
20

50

Answer 1

The function \(C(x) = 30x\) represents the total cost of the field trip based on the number of students \(x\). Since the cost is multiplied by 30, the output will be a multiple of 30.

Let's evaluate the options:

- **100**: This is not a multiple of 30.
- **90**: This is \(30 \times 3\) (a multiple of 30).
- **30**: This is \(30 \times 1\) (a multiple of 30).
- **20**: This is not a multiple of 30.
- **50**: This is not a multiple of 30.

Therefore, the possible outputs for the function \(C(x) = 30x\) that are valid are:

- **90**
- **30**

So, the correct responses are 90 and 30.