SOLUTION: If a scientist has 35% acid solution and 20% acid solution and she needs 3 liters of 25% acid solution write and solve a linear equation and how much of each solution she should us
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Question 708611: If a scientist has 35% acid solution and 20% acid solution and she needs 3 liters of 25% acid solution write and solve a linear equation and how much of each solution she should use.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If a scientist has 35% acid solution and 20% acid solution and she needs 3 liters of 25% acid solution write and solve a linear equation and how much of each solution she should use.
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Equation:
acid + acid = acis
0.35x + 0.20(3-x) = 0.25*3
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35x + 20*3 - 20x = 25*3
15x = 5*3
x = 1 liter (amt. of 35% solution needed)
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3-x = 2 liters (amt. of 20% solution needed)
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Cheers,
Stan H.
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