SOLUTION: how many fluid ounces of water should be added to 4 ml of a 1:4 concentration to make a 1:6 concentration?

Question 794741: how many fluid ounces of water should be added to 4 ml of a 1:4 concentration to make a 1:6 concentration?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Assumption: The water is the second part, and your component material is the first part, so giving ratios as Component:Water.

Your calculations should be easier converted into ordinary fractions.

Your ratios give:
component solution, available
and
component solution, wanted

Those are
component available
and
component wanted

You want to add v fluid ounces of water which will not change the AMOUNT of Component; it will only change the CONCENTRATION of component.

See carefully, you have 4 MILILITERS of available (1/5) concentration solution but you want to add v FLUID OUNCES of water. I will setup the equations assuming mililiters. You can find and use the conversion factor for these two units on your own.

Again as I said, after solving for v, you need to convert from mililiters to fluid ounces ( NOT "ounces").
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