can anyone tell me how to solve this problem? i cant understand what is it means....
Rosamaria is setting up a 20 gallon saltwater fish tank that needs to have a salt content of 3.5%. If she has 2.5% salt and water that has 3.7% salt, how many gallons of the water with 3.7% salt content should she use
Stacey Warren - Expert brainly.com
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lets call the amount of \(3.7\%\) salt water \(x\) since that is what you are trying to find
and since the total is \(20\) that means the amount of \(2.5\%\) solution is \(20-x\)
wait, i cant understand why amount of 3.7% salt water is x