Answer:
y=2x/5-4x
Step-by-step explanation:
multiply z-4y on both sides,match the Ys together and then make y common
Parallel
perpendicular
parallel
neither
perpendicular
Answer: 1.65
Step-by-step explanation:
First, we must find 8/25 of 1.25. This is using multiplication.
1.25 * 8/25 = 0.4
Now, we can increase 1.25 by 8/25 of it. This is using addition.
1.25 + 0.4 = 1.65
<span>3x+5y=2 (1)
9x+11y=14 (2)
multiply equation (1) by 3
9x + 15y = 6
so
</span>9x + 15y = 6 (1')
9x + 11y =14 (2)
-------------------------subtract
4y = -8
y = -2
3x+5y =2
3x+5(-2) =2
3x - 10 = 2
3x = 12
x = 4
answer
(4, -2)