gdog5644
09.07.2019 •
Mathematics
You need to mix a solution that is 70% anti-freeze with one that is 30% anti-freeze to obtain 20 l of a mixture that 60% anti-freeze. how many liters of each of the solutions must be used?
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Ответ:
solutionwith 70% anti freeze=14l
solution with 30% anti freeze=5l
Ответ:
f