Let's denote the amount of money Kris needs to earn each weekend by x.
According to the problem, Kris plans to earn money each of the 8 weekends this summer. So, the total amount of money she will earn over the 8 weekends is 8x.
Furthermore, it is given that Kris currently has $190. Therefore, the total amount of money Kris will have by the end of the summer is 190 + 8x.
According to the problem, Kris wants at least $1,625 by the end of the summer. Therefore, we can create the inequality:
190 + 8x ≥ 1625
Now, let's solve this inequality for x:
8x ≥ 1435
x ≥ 179.375
The solution to the inequality is x ≥ 179.375, which means that Kris needs to earn at least $179.375 each weekend.
Interpretation: Kris needs to earn at least $179.375 each weekend in order to have at least $1,625 by the end of the summer.