How much of a 40% solution of alcohol and how much of an 80% solution
should be mixed to give 150 liters of a 50% solution?
should be mixed to give 150 liters of a 50% solution?
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Answer:
112.5 L of 40% solution and 37.5 L of 80% solution
Step-by-step explanation:
First, convert percent to decimal
40% = 0.4
80% = 0.8
50% = 0.5
From the table:
0.4x + 0.8(150 - x) = 0.5(150)
0.4x + 120 - 0.8x = 75
-0.4x = -45
x = 112.5 L
150 - x = 37.5 L