A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.

2 answers:

6 0

20% solution+70% solution=50% solution
total is 50
so the quantaties are x and 50-x (x+50-x=50)
0.2(50-x)+0.7(x)=0.4(50)
solve

distribute
10-0.2x+0.7x=20
10+0.5x=20
minus 10 both sides
0.5x=10
times 2
x=20

A is answer

Paladinen [302]3 years ago

3 0

Answer:The correct answer is 20 liters

Step-by-step explanation:

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1.
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