Area of triangle = base x height over 2
3 x 4 = 12
12 over 2 = 6
area = 6cm^2
-2x + xy = 30.....when y = 8
-2x + 8x = 30
6x = 30
x = 30/6
x = 5 <==
Answer:
I dont really know what this is asking but i think it would be 4/8 or 1/2
Step-by-step explanation:
Im sorry if its wrong