Question

I need to find value of y in trapezoid.

Answer 1

you need to set up 2 equations
the opposite sides are equal
and the 2 'left side' angles are also equal

Answer 2

I know the 2 sides are congruent but don't know what to do with 2 variables. Is the one side 12 and alos 30x+11y or is the 30x+11y the angle?

Answer 3

30x + 11y is the angle

Answer 4

2x+37=12 right

Answer 5

yes

Answer 6

2x + 3y = 12

Answer 7

and
30x + 11y = 112

Answer 8

3y=12-2x
y=4-2/3x and now sub this into equation or solve for x and sub into equation

Answer 9

its easier this way
if you multiply the first equation by 15
then subtract you'll eliminate x and find y very eeasily

Answer 10

so you have
30x + 45y = 180
30x = 11y = 112

Answer 11

thats 30x + 11y = 112

Answer 12

how did you go from 45y and 180 to 11y and 112

Answer 13

give me the whole problem

Answer 14

there is an attachment with diagram

Answer 15

I don't see the value of multiplying by 15

Answer 16

i dont have it

Answer 17

i multip;ied
3x + 4y = 12 by 15 so to get 30x

so we get

30x + 45y = 180

and we also have
the other equation 30x + 11y = 112

now subtract these 2

Answer 18

oh, but isn't one the length of a leg and the other degrees of angle