SOLUTION: Three acid solutions: 10%, 20%, 40%. How many ml of each to make 100ml of 18% solution if have to use four times as much of the 10% solution as the 40% solution.
x + y + z = 100;
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x + y + z = 100;
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Question 306030: Three acid solutions: 10%, 20%, 40%. How many ml of each to make 100ml of 18% solution if have to use four times as much of the 10% solution as the 40% solution.
x + y + z = 100; .1x + .2y + .4z = 100 x .18 = 18
Need to use matrix and graphing calculator, but only have two equations and three unknowns. Help! Answer by richwmiller(17219) (Show Source):
