Question

Jay J runs of a 1/3 mile in 4 minutes. A. If Jay J continues at the same speed, how long will it take her to run one mile?

Answer 1

`\bf \begin{array}{ccll} miles&minutes\\ \cline{1-2} (1)/(3)&4\\\\ 1&x \end{array}\implies \cfrac{~~(1)/(3)~~}{1}=\cfrac{4}{x}\implies \cfrac{1}{3}=\cfrac{4}{x}\implies x=12`