Step-by-step explanation:
Supplementary angles add up to 180. so if you let the second angle = x, you can define the first one as 0.5x+25.
Then you can write an equation:
x + 0.5x + 25 = 180
combine x's and subtract 25 from both sides:
1.5x = 155
divide by 1.5 to solve for x
x = 103.3
that is angle #2
for angle #1, you divide by 2 and add 25
103.3 / 2 = 51.65 + 25 = 76.65, round to the nearest tenth, 76.7
check by adding and you get
103.3 + 76.7 = 180
