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20 votes
20 votes
HELP PLEASE!! ITS DUE AT 5

HELP PLEASE!! ITS DUE AT 5-example-1
User Brianbruff
by
2.8k points

1 Answer

25 votes
25 votes

Answer:

B.

Explanation:

We can make this an equation because they are
S.s.Int angles


(60x+30)+(9x+12)=180

Combine like terms


69x+42=180

Subtract 42 from both sides


69x=138

Divide both sides by 69


x=2

Find m∠4 & m∠6

m∠4 =
60x+30 since
x equals
2 we get m∠4 = 150°

m∠6 =
9x+12 since
x equals
2 we get m∠6 = 30°

User Roberto Pezzali
by
2.9k points