SOLUTION: For what values of x would the triangle have a perimeter of at least 72? x x+11 2x+5 I just want to know if I have done this right...Thank you

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: For what values of x would the triangle have a perimeter of at least 72? x x+11 2x+5 I just want to know if I have done this right...Thank you      Log On


   

Question 412332: For what values of x would the triangle have a perimeter of at least 72?
x
x+11
2x+5
I just want to know if I have done this right...Thank you
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
The perimeter P is equal to

P = x + (x+11) + (2x+5) = 4x+16. We want this to be greater or equal to 72, so

4x%2B16+%3E=+72

4x+%3E=+56

x+%3E=+14