## anonymous one year ago How much water must be added to a gallon of 10% saline solution to create a 2% solution?

1. anonymous

$\frac{10\%}{1~\text{gallon}} = \frac{2\%}{x~\text{gallons}}$

2. anonymous

Once you have the gallons needed $$x$$, you can subtract the existing number of gallons $$1$$, to get the answer: $$x-1$$.

3. anonymous

Thanks