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OpenStudy (anonymous):
(How Much 25% Acid Solution Should Be Mixed With 85% Solution In Order To Obtain 300 Liters Of 65% Solution)
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OpenStudy (amistre64):
a + b = t ; *-x xa + yb = zt -xa -xb = -xt xa +yb = zt ------------- b(y-x) = t(z-x) b@y = t(z-x)/(y-x) amount@25% = 300(.65-.85)/(.25-.85)
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