Ahealth department estimates that it needs 4 vials of malaria serum to treat 50 people. how many vials are required to treat 875 people?

70 vials

Assuming the proportion holds, ...

... vials/people = x/875 = 4/50

Multiplying by 875, we get

... x = 875·4/50 = 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

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

step-by-step explanation: it is d