Question 353860
Hi,
Let x be the amount of the 50% total solution. then (6L-x) would be the amount of the 20% total solutiom
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question states
.50x + .20(6L-x)=.40*6L
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simplify and solve
.30x = .40*6L - .20*6L

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x (the amount of the 50% total solution)= 4L
the amount of the 20% total solution = 2L