SOLUTION: the length of a poster is 2 inches longer than twice its width. if the diagonal of the poster is 13inches, wha are the length and width of the poster?

Algebra ->  Rectangles -> SOLUTION: the length of a poster is 2 inches longer than twice its width. if the diagonal of the poster is 13inches, wha are the length and width of the poster?      Log On


   

Question 846779: the length of a poster is 2 inches longer than twice its width. if the diagonal of the poster is 13inches, wha are the length and width of the poster?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x is width
y is length

y=2%2B2x and x%5E2%2By%5E2=13%5E2;
Substitute for y.
x%5E2%2B%282%2B2x%29%5E2=13%5E2
Take it from here.