# Concentration

How 0.5 liters of 8% vinegar diluted to a concentration of 20 hundredths % of vinegar? How many liters of water must be poured?

x =  19.5 l

### Step-by-step explanation:

0.5 • 8% = 20/100 % • ( x + 0.5)

20x = 390

x = 39/2 = 19.5

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