Respuesta :

Answer:

x = 15

W = 30

Step-by-step explanation:

There are 360 degrees in a rectangle.  So the sum of all 4 angles should add up to 360.  Use algebra to solve for x.

10x + 6x + 6x + (3x-15) = 360

25x - 15 = 360

25x = 375

x = 15

Plug in x = 15 to solve for W.

3(15) - 15 = 30