Respuesta :

Answer:

11.75

Step-by-step explanation:

Interior angles in a quadrilateral sum to 360.

Opposite angles in a parallelogram are the same.

360=118+118+(4x+15)+(4x+15)

= 236 + 8x + 30

= 266 + 8x

8x = 360 - 266 = 94

x=94/8 = 11.75

Maddey24

Answer:

x=11.75

If the answer is 11.75, move to L.

Step-by-step explanation:

The sum of all angles in this parallelogram is 360°. And angles which are vertical are the same.

118+118= 236

236+2(4x+15)=360

236+8x+30=360

8x+266=360

8x=94

x=11.75