SOLUTION: How many ounces of water must be added to a 20 oz. of a 8% salt solution to make a 2% salt solution?
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: How many ounces of water must be added to a 20 oz. of a 8% salt solution to make a 2% salt solution?
This question is from textbook
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
How many ounces of water must be added to a 20 oz. of a 8% salt solution to make a 2% salt solution?
:
Let x = amt of water required
:
The amt of salt does not change, just the percent changes.
Write a simple equation from this fact
:
.08(20) = .02(x+20)
:
1.6 = .02x + .4
:
1.6 - .4 = .02x
x =
x = 60 oz of water required
:
:
Check (Resulting total = 80 0z
.08(20) = .02(80)
1.6 = 1.6
;
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