If the teacher begins recording on a digital camera with an hour available, is there enough time to record everyone if she gives a 15- minute introduction at the beginning of class and every student takes a minute to get ready? explain.

If x is the amount of students
1x+15<60
x <45
The teacher only has one hour or 60 minutes so he can use 60 minutes or less. After the 15 minute introduction there is only 45 minutes left and if every student needs 1 minute each then 45 students or less can fit into the recording