Let the running time for movie b = x minutes
Running time for movie a = (x + 39) minutes
3x - (39 + x ) = 47 minutes
3x - x = 47 + 39 minutes
2x = 86 minutes, x = 43 minutes
So movie b runs 43 minutes
Movie a runs 43 + 39 = 82 minutes
Answer:
the anser is the first one
this is for people of any age (technically) but it is mostly for people in grade school, middle, and high school
Step-by-step explanation: