<PRE><B>Question 229572</B>
The measure of 2 supplementary angles are represented by (3x+10)degrees and (7x-40)degrees. Can you help me understand how to determine the measure of each angle?
-------------
Supplementary angles add up to 180 degrees
-------------
Equation:
3x+10 + 7x-40 = 180
10x -30 = 180
10x = 210
x = 21
--------------
1st angle = 3x+10 = 3*21+10 = 73 degrees
2nd angle = 7x-40 = 7*21-40 = 147-40 = 107 degrees
--------------
Cheers,
Stan H.</PRE>