SOLUTION: to produce 8 liters of a 90% alcohol solution by mixing together a 75% solution and a 95% solution how many liters of the 75% should be used

Algebra.Com
Question 815528: to produce 8 liters of a 90% alcohol solution by mixing together a 75% solution and a 95% solution how many liters of the 75% should be used
Found 2 solutions by TimothyLamb, ewatrrr:
Answer by TimothyLamb(4379)   (Show Source): You can put this solution on YOUR website!
w = volume of weak solution
s = volume of strong solution
---
75w + 95s = 8*90
w + s = 8
s = 8 - w
---
75w + 95s = 8*90
75w + 95s = 720
75w + 95(8 - w) = 720
75w + 760 - 95w = 720
20w = 40
---
w = 2 liters
s = 6 liters
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

producing 8 liters of a 90% alcohol solution by mixing together a 75% solution and a 95% solution

   |After multiplying thru by 100

         x =   solve for x and find (8-x):amount of 75% solution 

RELATED QUESTIONS


To produce 20 liters of a 45% alcohol solution by mixing together a 60% solution and a... (answered by Fombitz)

A chemist has to make 80 liters of a 15.5% alcohol solution by mixing a 32% alcohol... (answered by TimothyLamb)

How many liters of a 30% alcohol solution and how many of a 60% alcohol solution must be... (answered by nerdybill)

twenty liters of an 87.5% alcohol solution is obtained by mixing a 95% solution with 70%... (answered by josgarithmetic)

how many liters of a 20% alcohol solution and how many liters of pure alcohol should be... (answered by Alan3354)

how many liters of 20 percent alcohol solution and how many liters of pure alcohol should  (answered by Edwin McCravy)

How many liters of a 70% alcohol solution must be added to 50 liters of a 40% alcohol... (answered by fractalier)

How many liters of a 70% alcohol solution must be added to 50 liters of a 40% alcohol... (answered by jorel555)

How many liters of a 70% alcohol solution must be added to 50 liters of a 40% alcohol... (answered by josgarithmetic,MathTherapy)