Answer:
167 pairs
Explanation:
Represent jeans with J and shirts with S
![S = 2J](https://img.qammunity.org/2021/formulas/mathematics/college/77ie6gon8ent3fqd8hkx4p7hkxd652orx1.png)
--- Maximum
Required
Determine the number of pair of jeans he can buy
To represent as an inequality, we have:
![S + J \leq Amount](https://img.qammunity.org/2021/formulas/mathematics/college/s6iramamfnu5lwq5hez2sqaz2mmoc20s1r.png)
![S + J \leq 500](https://img.qammunity.org/2021/formulas/mathematics/college/9obeqbn7hzbm4rbg6swlg6zqkzhcb68szz.png)
Substitute 2J for S
![2J + J \leq 500](https://img.qammunity.org/2021/formulas/mathematics/college/xr18ruwkr3kzqclbk6e39fkakv43m87w4u.png)
![3J \leq 500](https://img.qammunity.org/2021/formulas/mathematics/college/9yhze87elos6cid3na2v6a0166nrvcg0zj.png)
Divide through by 3
![J \leq 500/3](https://img.qammunity.org/2021/formulas/mathematics/college/59ad9tbnopvqre1rbixpq6ttsvjsp3sbqd.png)
![J \leq 167](https://img.qammunity.org/2021/formulas/mathematics/college/umzfohqk912qjon2gcen5bno08ctnxvejj.png)
Hence, without exceeding $500, Jess can buy 167 pairs of jeans