Answer:
The answer is 20
Step-by-step explanation:
By definition of supplementary angles,
∠ABD + ∠BDE = 180
5x + 17x - 18 = 180
22x = 198
x = 9
∠ABD = 5(9) = 45°
∠BDE = 180 - 45 = 135°
123.456...number in the hundredths place is 5
Your system could be anything, just remember that input should be half than the output.
So, y ≥ 1/2x
5y ≥ 5/2x
10y ≥ 5x
Hope this helps!
Wasn't quite sure what you meant by solve a triangle, but i've found the missing angles and sides and drawn the triangle (not to scale). working is included in the image
hope it helps :)