So I have this homework question I need help on.
There's this rectangular garden that is said dimension ($x \times y$). Someone orders said amount of cement ($c^3$) and wants to make a border of uniform width. If the border is going to be said depth ($d$), how wide should the border be?
I am given the dimensions of the garden, the amount of cement going to be used, and the depth. How would I go to tackling this problem?