SOLUTION: I have a mixture problem for Basic Algebra that I'm having trouble figuring out. The problem is: You need 25 liters of a 12% salt solution. To get it, you'll mix a 4% solution wit

Question 671797: I have a mixture problem for Basic Algebra that I'm having trouble figuring out.
The problem is: You need 25 liters of a 12% salt solution. To get it, you'll mix a 4% solution with a 19% solution. How many liters of each will you need. I have tried many times to solve this problem, but I keep getting a negative number.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
You need 25 liters of a 12% salt solution. To get it, you'll mix a 4% solution with a 19% solution. How many liters of each will you need.
----------------
f = amount of 4%
n = amount of 19%
---------
f + n = 25 (total solution)
4f + 19n = 12*25 (total salt)

RELATED QUESTIONS
I'm working on factoring and multipliers and I 'm having trouble figuring out how they... (answered by Alan3354)

I am having a problem figuring out what the degree is of the term 2y^5. I have worked on... (answered by solver91311)

Ratio and Proportion 1. A lawyer bills her clients $200 per hour of service. If a... (answered by stanbon)

I need a story problem for 1/4x=3/2. I know x=6,but I am having problems figuring out a... (answered by josmiceli)

Hello, i am having trouble figuring out how to solve for (h) in the problem... (answered by stanbon)

I am having trouble figuring this problem out. What is the probability of getting a... (answered by Edwin McCravy)

Hello, I am having trouble figuring out this problem Write a recursive formula that... (answered by stanbon)

Please help me solve this word problem: We need a mixture of gold raisins that sell for... (answered by richwmiller)

Hi, I am having trouble figuring out the correct equation to form from the following word (answered by lwsshak3)