SOLUTION: A pharmacist mixed some 10%-saline solution with with some 15%-saline solution to obtain 100ml of a 12%-saline solution. How ,uch of the 10%-saline did the pharmacist use in the m
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Question 238405: A pharmacist mixed some 10%-saline solution with with some 15%-saline solution to obtain 100ml of a 12%-saline solution. How ,uch of the 10%-saline did the pharmacist use in the mixture? .10x+.15y=.12 x+y=100 Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! 1.
2.
Multiply eq. 1 by -10 and add to eq. 2,
Then from eq. 1,
60 ml of 10% solution
40 ml of 15% solution.
