SOLUTION: daniel wants to make a 2% saline solution. He has already poured 12ml of pure water into a beaker. how many ml of a 8% saline solution must he add to this to create the desired mix

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Question 1114657: daniel wants to make a 2% saline solution. He has already poured 12ml of pure water into a beaker. how many ml of a 8% saline solution must he add to this to create the desired mixture?
Found 2 solutions by josgarithmetic, stanbon:
Answer by josgarithmetic(39617) About Me  (Show Source):
Answer by stanbon(75887) About Me  (Show Source):
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daniel wants to make a 2% saline solution. He has already poured 12ml of pure water into a beaker. how many ml of a 8% saline solution must he add to this to create the desired mixture?
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Equation:
water + water = water
12 + 0.92x = 0.98(12+x)
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12 + 0.92x = 0.98*12 + 0.98x
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0.02*12 = 0.06x
x = 4 ml
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Cheers,
Stan H.
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