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WARRIOR [948]
3 years ago
11

What is the value of y? O A. 30° OB. 40° O C. 50° O D. 60°

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
5 0
<h3>Answer:  B. 40</h3>

For any triangle, the three angles always add to 180

(y+10)+(2y)+(50) = 180

3y+60 = 180 ... combine like terms

3y+60-60 = 180-60 ... subtract 60 from both sides

3y = 120

3y/3 = 120/3 .... divide both sides by 3

y = 40

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