Raymond B. answered 02/10/23
Tutor
5
(2)
Math, microeconomics or criminal justice
A +B = 90
A-B = 47.2
add the equations to eliminate one variable:
2A = 90+47.2 = 137.2
A = 137.2/2 = 68.6 degrees
B =90-68.6 = 21.4 degrees
B = A-47.2 = 68.6-47.2 = 21.4 degrees