Answer:it is 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given


The given system is
can be represented by

The given system is consistent when determinant of A is not equal to zero



i.e. system is consistent for all value of k except 

Answer:
sugar| cookies
(cups) | (dozens)
1 | 2.5
2 | 5
3 | 7.5
4 | 10
Goes up by 2.5 each time
Not sure if this is what you want
Step-by-step explanation:
equation is y = 2.5x
Answer:
The attendance was 198 children, 90 students and 99 adults.
Step-by-step explanation:
We define:
c: children attendance
s: students attendance
a: adult attendance
The equation that describes the total ticket sales is:

We also know that the children attendance doubles the adult attendance:

The third equation is the seating capacity, which we assume is full:

We start by replacing variables in two of the equations:

Then, we solve the remaining equation for a:

Then, we solve for the other two equations:

The attendance was 198 children, 90 students and 99 adults.