Question

In the figure, Z ABC and Z BCD are supplementary angles.

Answer 1

Answer: 22

180 - 40 = 140

5(22) = 110

110 + 30 = 140

Answer 2

x = 22

Explanation:

line AD is 180°

so 40° + (5x + 30°) = 180°

solve for x.

5x = 180-30-40

5x= 110

x = 110/5

x= 22