SOLUTION: Hello I am so confused on how to solve this word problem
How many liters of a 70% acid solution must be mixed with a 20% acid solution to get 500 L of a 60% acid solution?
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How many liters of a 70% acid solution must be mixed with a 20% acid solution to get 500 L of a 60% acid solution?
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Question 861713: Hello I am so confused on how to solve this word problem
How many liters of a 70% acid solution must be mixed with a 20% acid solution to get 500 L of a 60% acid solution?
You can put this solution on YOUR website! Percent ---------------- quantity
Acid type I 70.00% ---------------- x liters
Acid type II 20.00% ------ 500 - x liters
Mixture 60.00% ---------------- 500
Total 500 liters
70.00% x + 20.00% ( 500 - x ) = 60.00% * 500
70 x + 20 ( 500 - x ) = 30000
70 x + 10000 - 20 x = 30000
70 x - 20 x = 30000 - -10000
50 x = 20000
/ 50
x = 400 liters 70.00% Acid type I
100 liters 20.00% Acid type II
