Answer:
[tex]\large\boxed{(n:2)-5=\dfrac{n}{2}-5}[/tex]
Step-by-step explanation:
[tex]\text{the quotient of a number n and 2}\to n:2=\dfrac{n}{2}\\\\5\ \text{less than the quotient...}\to\dfrac{n}{2}-5[/tex]
