Answer:
137.5° and 42.5°
Explanation:
supplementary angles are two angles whose sum is equal to 180°.
Let the second angle be x then it is given that the first angle is 10 degrees more than 3 times second angle that is 3(x)+10°.
we know that the sum of first and second angles is 180° (supplementary angles)
so, (3(x)+10°)+(x) = 180°
4(x) = 170°
x = 170°/4 = 42.5°
so, first angle is 3(42.5°)+10° = 137.5°, second angle is x that is 42.5°
therefore, the angles are 137.5° and 42.5°.