Respuesta :

Answer:

Step-by-step explanation:

244

424

What are the concentrations in percent?

x1 =

⇒ 50%  

x2 =

⇒ 25%

x3 =

⇒ 5%

172

Answer:

(2,4,4)

(4,2,4)

(1,7,2)

Step-by-step explanation:

the concentrations percents are x1=50 x2=25 and x3=5