NOTE: Angles not necessarily drawn to size . what is x?

45

Step-by-step explanation: 160-115= 45 you do this because the angles are across the vertex from each other.

X=45

Step-by-step explanation:

Method 1 ( the long one)

So AED and CEB are vertical angles, that means that the are the same and have the same value.

So 115 plus x equal 160.

                            115 + x = 160

from there we just have to subtract 115 from both sides to get x by itself.

                            115 + x = 160

                           -115         -115

                                   x=45

Method 2 (short one

If you know that those are vertical angles, then just subtract 115 from 160 and there you go. You get 45.

there will be 35 boys in each team. : )