We know that 3/5 pounds of cheddar cheese cost $6. To know the price for 2 pounds of cheese, we solve the following proportion
[tex]\frac{\frac{3}{5}}{6}=\frac{2}{x}[/tex]Then, we solve for x
[tex]\begin{gathered} \frac{3}{5\cdot6}=\frac{2}{x} \\ \frac{3}{30}=\frac{2}{x} \\ 3x=2\cdot30 \\ x=\frac{60}{3} \\ x=20 \end{gathered}[/tex]