Question

Use the marked parallel lines to find the value of y.
a) 19
b) 50
c) 55
d) 18
(diagram is down below)

Answer 1

any ideas on how to start?

Answer 2

not a clue. :/

Answer 3

first step is to find x, and then we can find y after that

Answer 4

using the rules of exterior angle relationships we know that

3x - 45 = 2x + 5

solve for x

Answer 5

x=44

Answer 6

not quite

Answer 7

3x - 45 = 2x + 5

start by subtracting 2x from each side

Answer 8

oh wait i got this. give me a sec

Answer 9

x=50

Answer 10

good.

now, find the angle at the bottom

2x + 5 = ?

Answer 11

still there??