Question

14.To prepare an aquarium for use, you can clean it with a saltwater solution. The amount salt isproportional to the volume of the water. The solution has 2 teaspoons of aquarium salt for every gallon ofwater. How many teaspoons of aquarium salt are needed for 5 gallons of water?

Answer 1

We know that the solution has 2 teaspoons of salt for every gallon of water. We can use the following proportion to find the salt needed for 5 gallons of water.

`\frac{2\text{salt}}{x}=\frac{1\text{water}}{5\text{water}}`

Let's solve for x

`x=2\cdot5=10`

Hence, there are needed 10 teaspoons of salt for 5 gallons of water.