Answer:
Step-by-step explanation:
The rate of change (slope) is 1 which is more than function 2 and less than function 1
The simplest form of -(6x+2y)+4(2x-y) = -2(-x+3y).
The answer is 147.631 liters.
Eay peasy
solve graphically
graph them and find the poitn that they intersect at
y=mx+b
m=slope
b= y intercept
y=7x-9
slope=7
yintercept=-9
y=3x-1
slope=3
yinercept=-1
I have attached graph below
easier way would be to simply sub them and solve
7x-9=y=3x-1
7x-9=3x-1
4x-9=-1
4x=8
x=2
y=3x-1
y=3*2-1
y=6-1
y=5
(2,5) is solution