Marketa bought 3.5 pounds of walnuts for $24.50
To determine how many pounds of walnuts she can purchase with $2, assuming that the price per pound is proportional, you can use cross multiplication:
$24.50______ 3.5pounds of walnuts
$2.00 ______ x pounds of walnuts
Both relationships are at the same ratio so that:
[tex]\begin{gathered} \frac{3.5}{24.50}=\frac{x}{2} \\ x=2(\frac{3.5}{24.50}) \\ x=2\cdot\frac{1}{7} \\ x=\frac{2}{7} \\ x\approx0.285\approx0.29 \end{gathered}[/tex]She can buy 0.29 pounds of walnuts with $2
