Question

2 angles are complementary. One of the angles is 30 degrees. The other has a label of 5n + 20. What would "n" have to be?

A. 20
B. 15
C. 10
D. 8

Answer 1

D

Explanation:

complementary angle of 30°=60°

5n+20=60

5n=60-20

5n=40

n=40/5=8