SOLUTION: Justin needs 140 L of an 80% acid solution. he only has a 25% solution and a 95% solution though how many liters of each does he need to make the needed 140 L of 80% acid solution
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Question 1072534: Justin needs 140 L of an 80% acid solution. he only has a 25% solution and a 95% solution though how many liters of each does he need to make the needed 140 L of 80% acid solution? Answer by ikleyn(52790) (Show Source):
Let x be the volume of the 25% acid solution to mix, and
let y be the volume of the 95% acid solution to mix.
Then your governing equations are
x + y = 140, (1)
0.25x + 0.95*y = 0.8*140. (2)
Simplify and solve for x and y.
