Respuesta :

Answer:

n=0.4

Step-by-step explanation:

10:4=5:2

to make 5 as 1, we will divide both 5 and 2 by 5

[tex]\frac{5}{5}[/tex]:[tex]\frac{2}{5}[/tex]=1:n

therefore, n=[tex]\frac{2}{5}[/tex] = 0.4