Answer:
Step-by-step explanation:
supplementary angles add up to 180 degrees
let the angles be a and b
a + b = 180
the measure of 1 angle (a) is 6 less then 20% of the other
a = (20% of b) - 6......a = 0.20b - 6
now we sub
a + b = 180
0.20b - 6 + b = 180
1.20b = 180 + 6
1.20b = 186
b = 186/1.20
b = 155
a + b = 180
a + 155 = 180
a = 180 - 155
a = 25
check...
a = 0.20b - 6
25 = 0.20(155) - 6
25 = 31 - 6
25 = 25 (correct)...it checks out
so ur angles are : 25 and 155
