Question

Using the same table, how much does 50 feet of rope cost?

Answer 1

The answer would be 62.5

Answer 2

`\begin{array}{ccll} length&\$\\ \cline{1-2} 6 & 7.50\\ 50& x \end{array} \implies \cfrac{6}{50}~~=~~\cfrac{7.50}{x} \\\\\\ 6x=(50)(7.50)\implies x=\cfrac{(50)(7.50)}{6}\implies x=62.5`