SOLUTION: Mixture A is 7.5% acid. To raise the concentration of acid to 10%, some pure acid will be added to the mixture. How many liters of mixture A and how many liters of pure acid are

SOLUTION: Mixture A is 7.5% acid. To raise the concentration of acid to 10%, some pure acid will be added to the mixture. How many liters of mixture A and how many liters of pure acid are

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Question 201110: Mixture A is 7.5% acid. To raise the concentration of acid to 10%, some pure acid will be added to the mixture. How many liters of mixture A and how many liters of pure acid are needed to end up with 200 liters of 10% solution
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
.075x+1.00(200-x)=.10(200)
.075x+200-x+20
-.925x=-180
x=194.6
a=7.5% acid=x=194.6lt
b=100% acid=200-194.6=5.4lt
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