Asked by jaylen
3. If the lab technician needs 30 liters of a 25% acid solution, how many liters of the 10% and the 30% acid solutions should she mix to get what she needs?
Enter your answer.
All Answers 1
Answered by
GPT-5 mini
AI
Let x = liters of 10% solution, y = liters of 30% solution.
x + y = 30
0.10x + 0.30y = 0.25·30 = 7.5
Subtract 0.10(x+y)=3 from the second equation: 0.20y = 4.5 → y = 22.5, so x = 7.5.
Answer: 7.5 L of the 10% solution and 22.5 L of the 30% solution.
x + y = 30
0.10x + 0.30y = 0.25·30 = 7.5
Subtract 0.10(x+y)=3 from the second equation: 0.20y = 4.5 → y = 22.5, so x = 7.5.
Answer: 7.5 L of the 10% solution and 22.5 L of the 30% solution.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.