Question

SHOW ALL OF THE STEP THAT YOU USE TO SOLVE THE PROBLEM
18.<1 and<2 are supplementary angles. m<1 is 4y+7,and m<2is 9y+4. FIND m<2

Answer 1

What does supplementary mean?

Answer 2

supplementary angles are two angles that equal 180 degrees

Answer 3

So if angle 1 and angle 2 are supplementary, what does that mean?

Answer 4

More precisely, supplementary angles are 2 angles whose SUM is 180

Answer 5

how do you find a sum?

Answer 6

What is the sum of 3 and 5 ?

Answer 7

you add them so it be 8

Answer 8

yes. you find a sum by adding.
What is the sum of 4y and 9y?

Answer 9

13 y

Answer 10

What is the sum of 7 and 4?

Answer 11

11

Answer 12

What is the sum of 4y+7 and 9y+4

Answer 13

13y+11

Answer 14

So those two angles are supplementary. When you add them you get 180. So write the equation that says that.

Answer 15

Are 120 and 60 supplementary angles?

Answer 16

What is 120 + 60?

Answer 17

180 so it right

Answer 18

\[(4y+7)+(9y+4)=180\]
\[13y+11=180\]
\[13y=169\]
\[y=13\]
\[<2=9y+4=9(13)+4=121^{o}\]