Two angles are supplementary. They have the following measures m<QRS = (x+16) degrees and m<SRT = (3x) degrees. What is the measure of <SRT?
Since the angles are supplementary, their measures must add up to 180 degrees.
So, we have the equation: (x+16) + (3x) = 180
Combining like terms, we get: 4x + 16 = 180
Subtracting 16 from both sides: 4x = 164
Dividing both sides by 4: x = 41
Therefore, the measure of <SRT (3x) is: 3(41) = 123 degrees.