Answer:
option b is better because it would be 6 pounds cheaper than option a
Answer: (7,5) X=7 and Y=5
Explanation:
Add the two equations together to eliminate y from the system.
x-y=2 + x+y=12
= 2x = 14
Divide both sides by 2
x=7
Substitute the value found for x into one of the original equations to solve for y
(7)-y=2
Move all terms to one side to make it easier
-y=2-7
Subtract
y=5
They can only sit one way because they are still in a row
Or did you mean like how many different ways can they sit?
