SOLUTION: I tried this, but my answer turned out being too high. Here's the problem. The first angle of a triangle measures 5 degrees more than the second. The measure of the third angle

Algebra ->  Human-and-algebraic-language -> SOLUTION: I tried this, but my answer turned out being too high. Here's the problem. The first angle of a triangle measures 5 degrees more than the second. The measure of the third angle       Log On


   

Question 59470: I tried this, but my answer turned out being too high. Here's the problem.
The first angle of a triangle measures 5 degrees more than the second. The measure of the third angle is half of the measure of the second. Find the measures of the angles of the triangle.
What I'm pretty sure is right:
y+5= 1st angle
y= 2nd angle
y/2= 3rd angle
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(Y+5)+Y+Y/2=180
Y+5+Y+Y/2=180
2.5Y=180-5
2.5Y=175
Y=70 ANGLE 1
THEN Y+5=70+5=75 ANGLE 2
THEN 180=70+75+70/2
180=70+75+35 (35 ANGLE 3)
180=180