Question

Si x/y = 0.625. Entonces el valor de y/x es?
alternativas
a.- 1.60
b.-2,67
c.-2,70
d.-3,33
e.-4,25

Answer 1

$\frac{x}{y} = 0.625$
x = y(0.625)
$\frac{y}{x} = \frac{1}{0.625}$
$\frac{y}{x} = 1.60$

Answer 2

$\frac{x}{y} = 0,625 \\ \\ \frac{x}{y} = \frac{625}{1000} \\ \\ (\frac{x}{y})^{-1} = (\frac{625}{1000}) ^{-1} \\ \\ \frac{y}{x}= \frac{1000}{625} \\ \\ \boxed{ \frac{y}{x}= 1,60} \\ \\ Opci\'on \quad a)$

Espero que te sirva, salu2!!!!