SOLUTION: Two solutions of salt water contain 0.05% and 0.15% salt respectively. A lab technician wants to make 1 liter of solution which contains 0.07% salt. How much of each solution shoul

SOLUTION: Two solutions of salt water contain 0.05% and 0.15% salt respectively. A lab technician wants to make 1 liter of solution which contains 0.07% salt. How much of each solution shoul

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Question 442341: Two solutions of salt water contain 0.05% and 0.15% salt respectively. A lab technician wants to make 1 liter of solution which contains 0.07% salt. How much of each solution should she use?
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
x+y=1
.0005x+.0015y=.0007
x=.8 .05%
y=.2 .15%
Do you mean 15% and 5% and 7%
15%=.15
5%=.05
7%=.07
whereas
.15%=.0015
.05%=.0005
.07%=.0007
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