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Flura [38]
3 years ago
7

A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution available. How many liters o

f the 20% solution and how many liters of the 60% solution should she mix to make the 30% solution?
Business
1 answer:
lana [24]3 years ago
8 0
80 times .30= .20x +.60(80-x)
24=.20x+48-.60x
Subtract 48 from both sides
-24=-.40x
Divide both sides by-.40
X= 60
60 liters of 20%
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