Its true a. A linear system is a set of equations
Answer:
B
Step-by-step explanation:
I think it’s E... because the first one was controlled and the second one is just observing the people that used it and the people that didn’t
Switch up the equation by subtracting.
9-(8*n)=0
Solve : -8n+9 = 0
Subtract 9 from both sides of the equation :
-8n = -9
Multiply both sides of the equation by (-1) : 8n = 9
Divide both sides of the equation by 8:
n = 9/8 = 1.125
