We have been given that at a city water purification plant, water is mixed with a release agent in a ratio of 8:1.
Let x be amount of release agent that should be mixed with the 32 ounces of water. We can write an equation by our given information as:
![(8)/(1) =(32)/(x)](https://img.qammunity.org/2019/formulas/mathematics/high-school/bfujgit0jw4zzxi1bsi9rq0mtozcibqw0f.png)
Upon cross multiplication we will get,
![8x=32](https://img.qammunity.org/2019/formulas/mathematics/high-school/telkwbclfgrtubzfpuhovypzzvwob2norh.png)
![x=(32)/(8) =4](https://img.qammunity.org/2019/formulas/mathematics/high-school/9jr832hp3i3tb1gyleklm3x31cc47dxbal.png)
Therefore, we should mix 4 ounces of the release agent to 32 ounces of water.