Answer:
Step-by-step explanation:
substitute x = - y - 2 in 0.5x + y = 1
0.5(- y - 2) + y = 1
-0.5y-1+y=1
0.5y=2
y=4
x=- y - 2
x=-4-2
x=-6
x=4; x=-6
B) 100
All 3 interior angles of a triangle add up to 180 so:
x + 25 + 55 = 180
x + 80 = 180
x = 180 - 80
x = 100
This is what internet says. Maybe this helps.
We just combine the terms, like this:
-8y = -12
The answer is: y = 1.5 or 3/2.
Hope this helped! c:
71
vertical sides are congruent
x+30=101
x=71
