Ms. Yang is planning South Glen's annual community talent show. After tryouts, she selected 20 acts to perform in the show. Ms. Yang wants to give each act the same amount of time onstage during the show and also have time for a 15-minute intermission. She has planned for the show to last a total of 75 minutes.
Which equation can Ms. Yang use to find how much time onstage, x, each act can have?