Every hour, the radio station plays 16 commercials that are a total 13 minutes in length. If x represents a 30-second commercial and y is a 60-second commercial, how many of each type of commercial is played? Enter the equations that represent the scenario into the graphing calculator to find how many of each type of commercial is played.

x + y = 16

0.5x + y = 13

In one hour, the radio station plays
commercials that are 30 seconds long.
In one hour, the radio station plays
commercials that are 60 seconds long.