The shaded region of the strip diagram represents the number of students that get more than 9 hours of sleep each night. Of the students surveyed, 45 get less than 9 hours of sleep each night. How many students were surveyed?
It's hard to tell, with no diagram
How does 87 sound?
To find the total number of students surveyed, we need to look at the entire strip diagram and count the number of students represented by the shaded region + the number of students represented by the unshaded region.
Since we know that 45 students get less than 9 hours of sleep each night, we can add this number to the shaded region.
Let's assume the shaded region represents "x" number of students.
Total number of students surveyed = x + 45 students.
To determine the number of students surveyed, we need to find the total number of students in the shaded region and then add the number of students who get less than 9 hours of sleep each night.
The shaded region represents the number of students who get more than 9 hours of sleep each night. Since it is not mentioned how many students are in the shaded region, we cannot directly determine the total number of students surveyed.
However, we do know that 45 students get less than 9 hours of sleep each night. This information allows us to calculate the total number of students surveyed using the following steps:
Step 1: Determine the number of students in the shaded region (students who get more than 9 hours of sleep).
To do this, subtract the number of students who get less than 9 hours of sleep (45) from the total number of surveyed students.
Total surveyed students = Number of students in the shaded region + Number of students who get less than 9 hours of sleep
Step 2: Add the number of students who get less than 9 hours of sleep (45).
Total surveyed students = Number of students in the shaded region + 45
Since the number of students in the shaded region is not provided, the exact number of students surveyed cannot be determined without more information.