You need a 15% acid solution for a certain test, but your supplier only ships 5% solution and 17.5% solution. If you need 20 lit
ers of 15% acid solution, how many liters of 5% and 17.5% solution do you need?
2 answers:
Answer:
4 liters of 5% and 16 liters of 17.5%
Step-by-step explanation:
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Answer:
4 liters of 5% and 16 liters of 17.5%
Step-by-step explanation:
Let quantity of 5% be x liters and of 17.5% be y liters
x+y=20 hence y=20-x
Introducing percentages
0.05x+0.175(20-x)=0.15*20
0.05x+3.5-0.175x=3
-0.125x=-0.5

Therefore, y=20-x=20-4=16
You need 4 liters of 5% and 16 liters of 17.5% to achieve 20 liters of 15% acid solution
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Answer:
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Step-by-step explanation:
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Answer:
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