Question

geometry.

Answer 1

that's the "consecutive exterior angles"
the sum of them equal 180 degrees

Answer 2

i know, but i dont completely understand how to do it

Answer 3

3x+20+5x+40 = 180

solve for x (assumed ur question find x)

Answer 4

let me try

Answer 5

go ahead :)

Answer 6

yay i got it, 15

Answer 7

oh wait, the answer in my packet says 115

Answer 8

maybe its wrong?

Answer 9

yup
the value of x = 15

but, what the original question here :)

Answer 10

ahh we need to find y

Answer 11

i got it :) u plug it in

Answer 12

okay, take the equation
3x+20+y=180 (it is supplement angles)

first, put x=15
then solve for y

Answer 13

ah, correct
y = 115 deg :)