You mean their sum is 12?
A) x + y = 12
B) x -y = 4 then we add both equations:
2x = 16
x = 8
y = 4
72 people stayed, because 96 ÷ 4 = 24, and 24 * 3 is 72.
Answer:
The first, third and last one are true
Answer: Third option.
Step-by-step explanation:
By definition, the slope of a line can be calculated with the following formula:

Since you need to solve for
to find an equivalent expression, you can apply these steps:
1. You must multiply both sides of the equation by
:

2. Finally, you must add
to both sides of the equation:

Answer:
(2 x x)^2 - (3 x y)^2
Step-by-step explanation:
Hope that helps sorry if it dosen't.