We are given with two equations X + y = k and <span>x - y = k. to find the solution of the </span>system<span> of linear equations, we can use elimination by adding the equations to eliminate y. hence the third equation is 2x= 2k ; x = k, hence y is equal to zero. Answer is C</span>
Answer:
The answer is: 
Step-by-step explanation:
If we add the angles inside a triangle, we must have 
. So we have an 
angle and an 
angle, their sum is 
, so the missing angle must be 
In a hour tailwind flies 402 mph
In a hour headwind flies 388 mph
2(4x - 3) > = -3(3x) + 5x
8x - 6 > = -9x + 5x
8x - 6 > = - 4x
-6 > = -4x - 8x
-6 > = - 12x
-6/-12 < = x
0.5 < = x or x > = 0.5 <==
** if u multiply/divide by a negative, the inequality sign changes
