Answer:
48
Step-by-step explanation:
Complementary angles add to 90 degrees
A+B =90
5x+22 + 10x+8 = 90
Combine like terms
15x + 30 = 90
Subtract 90 from each side
15x +30-30 = 90-30
15x = 60
Divide by 15
15x/15 = 60/15
x =4
B = 10x+8
=10*4+8
= 40+8
= 49
