# A health department estimates that 8 vials of malaria serum will treat 100 people. At this rate, how many vials are required to treat 175 people?

##### 2 Answers

Mar 28, 2018

#### Explanation:

#"using "color(blue)"proportion"#

#100" people "to8" vials"#

#175" people "to8/1xx175/100=14" vials"#

Mar 28, 2018

#### Explanation:

We can solve this using direct proportion. For direct proportion we have:

Where

We know 8 vials will treat 100 people.So:

Divide by 100:

Plugging in