A health department estimates that it needs 4 vials of malaria serum to treat 50 people. How many vials are required to treat 875 people?
Mathematics
tonaishawalker1
Question
A health department estimates that it needs 4 vials of malaria serum to treat 50 people. How many vials are required to treat 875 people?
1 Answer

1. User Answers sqdancefan
Answer:
70 vials
Stepbystep explanation:
Assuming the proportion holds, ...
... vials/people = x/875 = 4/50
Multiplying by 875, we get
... x = 875ยท4/50 = 70
70 vials are neede to treat 875 people.
_____
If the vials only come in packages of 4, then 72 vials (18 packages) are needed