EmmaTheSlayer
EmmaTheSlayer EmmaTheSlayer
  • 23-09-2021
  • Mathematics
contestada

what is the value of y ?
A. 30
B. 50
C. 60
D. 40

what is the value of y A 30 B 50 C 60 D 40 class=

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rock5654 rock5654
  • 23-09-2021
From what I can c it should be c, please feel free to let me know if that’s as wrong so I can learn it correctly as well dear
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PostScript
PostScript PostScript
  • 23-09-2021
In a triangle, the sum of interior angles is 180 degrees. So, to solve for y we can set up an equation for all of the angles

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

From there, you can simplify it by combining like terms

3y + 60 = 180

Subtracting 60 from each side

3y = 120

And then dividing both sides by 3

y = 40

Meaning that the answer is D.
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