Question

A pair of vertical angles have measures (2y+5)° and (4y)°.

Answer 1

I believe with vertical angles, they are equal to each other.

Therefore,

2y + 5 = 4y

subtract 2y from both sides

5 = 2y

divide 2 from both sides

y = 5/2

Answer 2

2y+5=4y    they are vertical angles which are eqaul
y=5/2