Final answer:
To find the number of gallons of water needed for 10 pounds of chemical, set up a proportion and solve for the unknown quantity.
Step-by-step explanation:
To find the number of gallons of water needed for 10 pounds of chemical, we need to use the given rate of 1 pound per 10 gallons of water. We can set up a proportion to solve for the unknown quantity. Let x be the number of gallons needed. We can write the proportion as 1 pound / 10 gallons = 10 pounds / x gallons.
Cross-multiplying and solving for x, we get x = 100 gallons. Therefore, 100 gallons of water would be needed for 10 pounds of chemical.
Learn more about Calculating proportions for chemical and water quantities