SOLUTION: The perimeter of a triangle is 110cm. one side is twice the second side. The third side is 30cm more than the second side. Find the measure of each side.

Algebra ->  Rectangles -> SOLUTION: The perimeter of a triangle is 110cm. one side is twice the second side. The third side is 30cm more than the second side. Find the measure of each side.      Log On


   

Question 351924: The perimeter of a triangle is 110cm. one side is twice the second side. The third side is 30cm more than the second side. Find the measure of each side.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
s%5B1%5D%2Bs%5B2%5D%2Bs%5B3%5D=110
.
.
.
s%5B1%5D=2%2As%5B2%5D
s%5B3%5D=30%2Bs%5B2%5D
Substitute,
2%2As%5B2%5D%2Bs%5B2%5D%2B30%2Bs%5B2%5D=110
4s%5B2%5D%2B30=110
4s%5B2%5D=80
highlight%28+s%5B2%5D=20%29cm
Then,
s%5B1%5D=2%2A20
highlight%28+s%5B1%5D=40%29cm
And,
s%5B3%5D=30%2B20
highlight%28+s%5B3%5D=50%29cm