Answer
7.5 pounds of salt are needed for 25 gallons of water.
Work Step by Step
Let X represent the pounds of salt needed for 25 gallons of water.
Now, let’s set up a proportion in which one ratio compares the amounts of salt and the other ratio compares the amounts of water.
So, $\frac{3}{X}$ = $\frac{10}{25}$
To solve this equation, we equate the cross products.
3 $\times$ 25 = X $\times$ 10.
75 = 10X
Divide both sides by 10.
X = 7.5
7.5 pounds of salt are needed for 25 gallons of water.
