SOLUTION: I need to find a system of equations and solve. I'm not sure how i would set up the equation x ml of a 60% salt solution are mixed with y ml of a 90% salt solution. The result

Question 755395: I need to find a system of equations and solve.
I'm not sure how i would set up the equation
x ml of a 60% salt solution are mixed with y ml of a 90% salt solution. The result is 35 ml of a 72% salt solution.
Found 2 solutions by lwsshak3, josgarithmetic:
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
I need to find a system of equations and solve.
I'm not sure how i would set up the equation
x ml of a 60% salt solution are mixed with y ml of a 90% salt solution. The result is 35 ml of a 72% salt solution
***
let x=amount of 60% solution to be mixed with 90% solution
let y=amount of 90% solution to be mixed with 60% solution
x+y=35
60%x+90%y=72%*35
0.6x+0.9y=0.72*35
6x+9y=7.2*35
x=35-y
6(35-y)+9y=252
210-6y+9y=252
3y=42
y=14 ml
x=21 ml
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
System: and

Maybe continue like ,

.
.
and you know what else to do to continue
.
.
RELATED QUESTIONS
If you have 500 ml of 28% salt-solution, how many milliliters of it should you mix with... (answered by rothauserc)
A chemist needs 240ml of a 50% Solution but only has 32% and 76% solutions to mix. How... (answered by richwmiller)
How much water must be evaporated from 38 ounces of a 4% salt solution to make a 5% salt... (answered by stanbon)
I want to find out how to solve this question: "How many liters of a 10% solution of... (answered by Alan3354)
Working on Chemistry homework. Could not understand this problem in class, still don't... (answered by scott8148)
How many liters of a 10% solution of acid should be mixed with 60% solution of acid to... (answered by stanbon)
How do I solve the following problem? I need 100 pounds of mixed nuts (peanuts and... (answered by richwmiller,Theo)
I also can not figure this one out How would you make 500 mL of a 10% salt water... (answered by Alan3354)
Solving Linear Systems of equations The problem: one is 5% acid and one is 6.5% acid .... (answered by mananth)