2 years ago

What is the value of y? y +10° 50° A. 500 B. 40° C. 60° ОО D. 300

Mathematics

2 answers:

garri49 [273]2 years ago

8 0

Answer:

Step-by-step explanation:

50° + (Y+40°) + 2Y= 180°

180°-50°-40°=3Y

90÷3=3Y÷3

Y=30

klasskru [66]2 years ago

6 0

Answer:

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , then

y + 10 + 2y + 50 = 180 , that is

3y + 60 = 180 ( subtract 60 from both sides )

3y = 120 ( divide both sides by 3 )

y = 40 → B

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