Relax

Respuesta :

[tex]-12,8 = 4t\\t = - \frac{12,8}{4} = - \frac{ \frac{64}{5} }{4} = -( \frac{64}{5} * \frac{1}{4} )=- \frac{16}{5} = -3 \frac{1}{5} =-3,2[/tex]