We have been given that there were 32 volunteers to donate blood.
Let n be number of volunteers that did not meet the health requirements to donate blood. So we can find the number of volunteers that donated blood by subtracting n from total number of volunteers.
[tex]\text{Volunteers that donated blood}= 32-n.[/tex]
To find amount of blood donated by each volunteer we will divide the total amount of donated blood (470 ml) by number of volunteers that donated blood.
[tex]\text{Amount of blood donated by each volunteer}=\frac{470\text{millimeters}}{(32-n)}[/tex]
Therefore, the expression that represents amount of blood donated by each volunteer will be [tex]\frac{470}{(32-n)}[/tex] milliliter per volunteer.
