Answer:
Last year Dr. Potter give 32 Polio vaccination and 28 measles vaccination.
Step-by-step explanation:
Given:
Each Polio vaccination consists of 4 doses , and each measles vaccination consists of 2 doses.
Last year ,Dr. Potter gave a total of 60 vaccinations that consisted of a total of 184 doses.
Now, to find the number of polio vaccinations and many measles vaccination.
Let the number of Polio vaccination be [tex]x.[/tex]
And let the number of measles vaccination be [tex]y.[/tex]
So, the total number of vaccinations:
[tex]x+y=60[/tex]
[tex]y=60-x[/tex] .......(1)
As, given each Polio vaccination consists of 4 doses , and each measles vaccination consists of 2 doses.
Thus, the total number of doses:
[tex]4x+2y=184[/tex]
Substituting the value of [tex]y[/tex] from equation (1):
[tex]4x+2(60-x)=184[/tex]
[tex]4x+120-2x=184[/tex]
[tex]2x+120=184[/tex]
Subtracting both sides by 120 we get:
[tex]2x=64[/tex]
Dividing both sides by 2 we get:
[tex]x=32.[/tex]
The number of Polio vaccination = 32.
Now, putting the value of [tex]x[/tex] in equation (1):
[tex]y=60-x[/tex]
[tex]y=60-32[/tex]
[tex]y=28.[/tex]
The number of measles vaccination = 28.
Therefore, last year Dr. Potter give 32 Polio vaccination and 28 measles vaccination.