Answer:
12: 138
13: 35
14: 49
Step-by-step explanation:
12: 180-42=138
13: 360-297-28=35
13: 90-41=49
Answer:
y=13/3x-1
Step-by-step explanation:
k=(y2-y1) /(x2-x1)
A(0,-1) x1=0,y1=-1
B(3,12) x2=3, y2=12
k=(12-(-1))/(3-0)
k=(12+1)/3
k=13/3
y-y1=k(x-x1)
y-(-1)=13/3(x-0)
y+1=13/3*x
y=13/3*x-1
For this case, the first thing we must do is define variables:
x: students of group 1
y: students of group 2
We now write the system of equations that models the problem:

Solving the system by substitution we have:



Then, the value of y is given by:

Answer:
8 students of group 1
20 students of group 2
Answer:
The former number of enrollees was 1423135
Step-by-step explanation:
Current number of enrollments in Health Maintenance Organizations in Illinois in recent year = 2462170
Now, it is found that this number is a result of 42.2% increase from the last year.
So, Previous year the number of enrollments is 42.2% less than the recent number of enrollments
Now, Former number of enrollments = 2462170 - 42.2% of 2462170
= 2462170 - 0.422 × 2462170
= 2462170 - 1039035.74
= 1423134.26 ≈ 1423135
Hence, The former number of enrollees was 1423135
The answer for this question is letter c