Respuesta :

Answer:

30

Step-by-step explanation:

[tex]\frac{2}{5}=\frac{12}{e}[/tex]

[tex]\frac{2}{5}e=12[/tex]

[tex]e=12*\frac{5}{2}=5*6=30[/tex]

To get to 12 from 2, you multiply by 6, so you must do the same to the denominator, so 5 times 6 equals 30

ANSWER:
e= 30