jforeman42
02.08.2019 •
Mathematics
Abiologist has a 40% solution and a 10% solution of the same plant nutrient. how many cubic centimeters of each solution should be mixed to obtain 25 cc of a 16% solution?
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Ответ:
.. (40 -16)/(40 -10) = 24/30 = 4/5
(4/5)*25 cc = 20 cc of 10% solution are needed.
(1/5)*25 cc = 5 cc of 40% solution are needed.
Ответ:
IM ALLERGIC TO POINTS
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