Using proportions, it is found that the distance that Jack ran is given by:
A. [tex]\frac{3}{8}x = \frac{2}{3}[/tex]
- The distance ran by Jane was of [tex]\frac{2}{3}[/tex] of a mile.
- This distance was also [tex]\frac{3}{8}[/tex] of the distance ran by Jack, which is given by x.
Applying the proportion, we have that [tex]\frac{3}{8}[/tex] multiplied by x is equals to [tex]\frac{2}{3}[/tex], hence:
[tex]\frac{3}{8}x = \frac{2}{3}[/tex]
Which means that the correct option is given by a.
A similar problem, also involving proportions, is given at https://brainly.com/question/24372153
