2 years ago

Please help me with this.

Mathematics

1 answer:

Yuliya22 [10]2 years ago

7 0

Answer:

Step-by-step explanation:

Angle DCB is equal to the sum of the 2 interior angles (Angle CBA & angle BAC)

So:

(3y + 8) + 4y = 113

(3y + [8-8]) + 4y = 113-8

3y + 4y = 105

7y = 105

7y/7 = 105/7

Y=15

Plug it into the equation:

3(15) + 8

45 + 8

Hope this helps! Have a great rest of your day!

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