Answer:
Y is the midpoint of XZ, so XY = YZ
- 20x - 30 = 12x + 10
- 20x - 12x = 10 + 30
- 8x = 40
- x = 5
Find XZ:
- XZ = 2(XY) = 2(20*5 - 30) = 140
The answer is:
------------------------
B is the midpoint of AC, so AB = BC
- 4x + 3 = 2x + 15
- 4x - 2x = 15 - 3
- 2x = 12
- x = 6
Find AC:
- AC = 2(AB) = 2(4*6 + 3) = 54
The answer is:
