Two angles are supplementary. The first angle has 20º more then the second angle. How many degrees are in each angle?

The sum of the measures of two supplementary angles is 180 degrees.

The second angle measures x.

The first angle measures 20 deg more than x, or x + 20.

The sum of their measures is 180 deg.

x + x + 20 = 180

2x + 20 = 180

2x = 160

x = 80

The second angle measures 80 deg.

x + 20 = 80 + 20 = 100

The first angle measures 100 deg.

Answer: The first angle measures 100 deg, and the second angle measures 80 deg.

The first angle measures 100 deg, and the second angle measures 80 deg.