Answer: 1 ounce of the chemical would be required for a 2500 gallon pool.
Step-by-step explanation:
Given, a 10,000 gallon swimming pool requires 4 ounce of a chemical, so rate of its volume to amount of chemical =[tex]\dfrac{10000}{4}=\dfrac{2500}{1}[/tex]
We assume that , there is a proportional relationship between volume of swimming pool and the amount of chemical added to it.
Let x be the amount of chemical require for a 2500 gallon pool , then
[tex]\dfrac{2500}{x}=\dfrac{2500}{1}\\\\\Rightarrow\ x=1[/tex]
I.e. 1 ounce of the chemical would be required for a 2500 gallon pool.