Janet and Judy were going to the movies. Janet showed up at Judy’s door at 7:45 PM. “ You’re 90 minutes late!” exclaimed Judy. Explain how you can determine at what time Janet was supposed to meet Judy.
To determine the time Janet was supposed to meet Judy, we need to subtract 90 minutes from the time of Janet's arrival.
Since Janet arrived at Judy's door at 7:45 PM and was 90 minutes late, we can subtract 90 minutes from 7:45 PM to find the original planned meeting time.
7:45 PM - 90 minutes = 6:15 PM
Therefore, Janet was supposed to meet Judy at 6:15 PM.