contestada

A health department estimates that 12 vials of malaria serum will treat 150 people. At this rate, how many vials are required to treat 225 people?

Respuesta :

Americ
This is a proportion problem. 12 vials needed for 150 is to x vials for 225 people.

12/150= x/225
Cross multiply
(150*x)= (12*225)
150x=2700
Divide both sides by 150
x= 18 vials

Check:
12/150=18/225
Divide
0.08=0.08 check

Hope this helps! :)
Pandacornworld123

Step-by-step explanation: The proportion would be -

12 / 150 = x / 225.

That is, 12 per 150, x amount per 225

To solve this proportion, you can cross multiply (multiply the values diagonally) -

12 / 150 = x /225

150x = 12(225)

150x = 2700

x = 18

18 vials are required to treat 225 people.