Angie takes a random sample of 100 students in her school and finds that 58% of the sample prefers art over music. there are 1,200 students in the school. based on the sample proportion, how many students in the school would be expected to prefer art over music?

a. 696
b.1,200
c. 58
d. 100

Option 'A' is correct.

Step-by-step explanation:

Since we have given that

Total number of students in the school = 1200

In a sample of 100 students, 58% of the sample prefers art to music.

So, Number of students in the school would be expected to prefer art over music is given by

Hence, there are 696 students who prefer art over music.

Therefore, Option 'A' is correct.

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18