SOLUTION: I don't understand how to create an algebraic formula to answer this question:
A solution of 75% vinegar is to be mixed with a solution of 22% vinegar to form 636 liters of a 70%
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A solution of 75% vinegar is to be mixed with a solution of 22% vinegar to form 636 liters of a 70%
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Question 710420: I don't understand how to create an algebraic formula to answer this question:
A solution of 75% vinegar is to be mixed with a solution of 22% vinegar to form 636 liters of a 70% solution. How many liters of the 75% solution must be used? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A solution of 75% vinegar is to be mixed with a solution of 22% vinegar to form 636 liters of a 70% solution. How many liters of the 75% solution must be used?
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Equation:
vinegar + vinegar = vinegar
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0.75x + 0.22(636-x) = 0.70*636
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Multiply thru by 100 to get:
75x + 22*636 - 22x = 70*636
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53x = 48*636
x = 576 liters (amt. of 75% solution needed)
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636-x = 60 liters (amt. of 22% solution needed)
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Cheers,
Stan H.
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