SOLUTION: How many ounces of a 30% saline solution must be added to 60 ounces of a 20% saline solution to make a 25% saline solution? Can you please show me the steps?
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Question 692346: How many ounces of a 30% saline solution must be added to 60 ounces of a 20% saline solution to make a 25% saline solution? Can you please show me the steps? Answer by MathTherapy(10552) (Show Source):
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How many ounces of a 30% saline solution must be added to 60 ounces of a 20% saline solution to make a 25% saline solution? Can you please show me the steps?
Let amount of 30% saline solution to be added be T
Then: .3(T) + .2(60) = .25(T + 60)
.3T + 12 = .25T + 15
.3T - .25T = 15 – 12
.05T = 3
T, or amount of 30% saline solution to be added = , or oz
You can do the check!!
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