Answer:
[tex]t\leq 4\ teachers[/tex]
Step-by-step explanation:
Let
t-------> the number of teachers
we know that
Noor gave [tex]1/3[/tex] of a sheet to each of the [tex]45[/tex] students at recess
so
the total number of sheets given to students equals to
[tex]45*\frac{1}{3}=\frac{45}{3}=15\ sheets[/tex]
The remain sheets is equal to
[tex]21-15=6\ sheets[/tex]
To find the maximum number of teachers divide the remain sheets by [tex]1\frac{1}{2}[/tex] sheets
remember that
[tex]1\frac{1}{2}=1.5[/tex]
so
[tex]6/1.5=4\ teachers[/tex]
therefore
the inequality is equal to
[tex]t\leq 4\ teachers[/tex]
