ANSWER
Find out the how many milliliters of water did coach Kelly put in each cooler.
To proof
let us assume that the water put in the each cooler be x.
As given
Coach Kelly bought 32 L of water
she divied the water equally between 8 coolers
1 litre = 1000 miilitre
![x = (32* 1000)/(8)](https://img.qammunity.org/2019/formulas/mathematics/high-school/4spwh0cb55gcjkod9yd5owei3xjtyq04zs.png)
solving the above
x = 4000 millitre
therefore 4000 milliliters of water did coach Kelly put in each cooler.
Hence proved