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Help! Best answer = Braniest

Help! Best answer = Braniest-example-1
User Peteroid
by
7.6k points

2 Answers

3 votes

Answer:

x = 20

angle 1 = 50

angle 2 = 40

Explanation:

complementary angles add up to 90

so, you can make this equation:

2x + 10 + x + 20 = 90

combine like terms

2x + x + 10 + 20 = 90

3x + 30 = 90

subtract 30 from both sides of the equation

3x + 30 - 30= 90 - 30

3x = 90 - 30

3x = 60

divide both sides of the equation by 3

3x/3 = 60/3

x = 60/3

x = 20

now, plug x into the angles:

2x + 10

2 * 20 + 10

40 + 10

the first angle is 50°

x + 20

20 + 20

the second angle is 40

User Phongyewtong
by
6.8k points
6 votes

Answer:

x=20

Explanation:

Complementary = 2 angles which = 90 degrees

so 2x+10 + x+20 =90

combine like terms

3x+30=90

-30 -30

3x=60

x=20

lets check! (2(20)+10) + (20+20)

50 + 40 =90 degrees

User PetriL
by
7.3k points