Answer:
If the slopes are different, there is one solution.
If the slopes the same but the y intercepts different, there is no solution.
If the slopes and y intercepts are the same, there are infinitely many solutions.
2x + y = 4
2y = 6 - 2x
Solve for y on both
y = 4 - 2x
y = 3 - x
They are both different, so there is one solution
Step-by-step explanation:
Answer:
m=84
r:m = 1:7
therefore when r= 1 then M=14

I think that's how you do it
A: 40 because supplements add up to 180
B: 54 because complements add up to 90
3/4x=728/3
x=728/3×4/3
x=32.556
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BUT I'M NOT SURE IF IT IS CORRECT