Respuesta :

luana
[tex]3\ buckets\ to\ fill\ \frac{1}{3}\ of\ tank\\\\ x\ buckets\ to\ fill\ 1\ tank\\\\ proportion:\\ 3-\frac{1}{3}\\ x-1\\\\cross\ multiplication:\\ 3*1=\frac{1}{3}x\ \ \ | multiply\ by\ 3\\\\ x=9\\\\ To\ fill\ 1\ tank\ we\ need\ 9\ buckets.[/tex]