Question

<1 and <2 are complementary
<1=x
<2=[3x +30]

Answer 1

x=15

<1 =15

<2 = 75

Explanation:

Complementary angles add to 90

<1 + <2 = 90

x + 3x+30 = 90

Combine like terms

4x+30 =90

Subtract 30 from each side

4x+30-30 = 90-30

4x = 60

Divide each side by 4

4x/4 = 60/4

x = 15

<1 =15

<2 = 3*14+30 = 45+30 = 75