Resposta :
Resposta:
para engarrafar 4000 levara 8 horas
Explicação passo-a-passo:
3000 ----- 6h
4000 ----- yh
y = 4000 x 6 / 3000
y = 8 h
[tex]\Large\boxed{\begin{array}{l}\begin{array}{cc}\sf refrigerantes &\sf horas\\\sf 3000&\sf6\\\sf 4000&\sf x\end{array}\\\\\sf x=\dfrac{4000\cdot6}{3000}\\\\\sf x=\dfrac{24000}{3000}\\\\\sf x=8\, horas~\checkmark\end{array}}[/tex]