If the 50 dollar jean was marked up by 3/5, then we need to solve this to get the final price
[tex]50\cdot(1+\frac{3}{5})[/tex][tex]\begin{gathered} 50\cdot(\frac{5}{5}+\frac{3}{5}) \\ 50\cdot(\frac{8}{5}) \end{gathered}[/tex][tex]\frac{50\cdot8}{5}=\frac{400}{5}=80[/tex]
Therefore, the final price is $80
