Answer:
B. 30
D. 90
Step-by-step explanation:
The cost for an upcoming field trip is $30 per student. The cost of the field trip C, in dollars, is a function of the number of students x. Select all the possible outputs for the function defined by c(x) = 30x. A. 20 B. 30 C. 50 D. 90 E. 100
Given function:
C(x) = 30x
Where,
x = number of students
A. 20
C(x) = 30x
20 = 30x
x = 20/30
= 0.67
x = 0.67 student
B. 30
C(x) = 30x
30 = 30x
x = 30/30
x = 1 student
C. 50
C(x) = 30x
50 = 30x
x = 50/30
x = 1.67 students
D. 90
C(x) = 30x
90 = 30x
x = 90/30
x = 3 students
E. 100
C(x) = 30x
100 = 30x
x = 100/30
= 3.33
x = 3.33 students
Number of students, x should be an whole number
The possible for the function are
B. 30
D. 90
