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1 vote
If 2x and (4x+30) are complementary angles. find the angles. Please answer it it's urgent.

2 Answers

6 votes

Answer:

20 and 70

Explanation:

2x + 4x + 30 =90

6x=90-30

6x=60

x=60/6x

x=10

so, 2x= 20 and 4x=40

20,70

User Adam Lee
by
4.8k points
10 votes

Answer:

20 ,70

Explanation:

Complementary angles sum up to 90

2x + 4x + 30 = 90

6x + 30 = 90

Subtract 30 from both sides

6x = 90 - 30

6x = 60

x = 60/6

x = 10

2x = 2*10 = 20

4x +30 = 4*10 +30 = 40 +30 = 70

User Abdullah Tahan
by
4.7k points