Homework Help: Algebra

Posted by Mike on Wednesday, January 27, 2010 at 2:35am.

a chemist mixed a 15% glucose solution with a 35% glucose solution. This mixture produed 35 liters of 19% glucose solution. How many liters of each solution did the chemist use in the misture?

Algebra - drwls, Wednesday, January 27, 2010 at 6:45am
Let x = the volume of the weak solution
Let y = the volume of the strong solution

x + y = 35 (total volume)
0.15 x + 0.35 y = (0.19)*35 = 6.65
(amount of glucose in mixture)

Solve those two simultaneous equations.

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