Respuesta :

chi3fcomm5nd

[tex] \frac{9}{x} = \frac{4}{5} [/tex]
dividing both sides by 9
[tex] \frac{1}{x} = \frac{4}{5 \times 9} [/tex]
rasing both sides to the power of -1
[tex]x = \frac{5 \times 9}{4} = \frac{45}{4} [/tex]