Problema Solution
You have 2 slatwater solutions. One consist of 20% salt,and the other consists of 15 % salt.
A. If you want to add these together to make 5 gallons of a 17% solution, how much of each solution should you add?
If you wanted to make 5 gallons of a 19% solution, what volume of each solution should you add?
Answer provided by our tutors
f = 14%
n = 19%
f + n = 45 (total gallons)
14f + 19n = 15*45 (total acid)
n = 45 - f
Sub for n
14f + 19*(45-f) = 675
14f + 855 - 19f = 675
-5f = -180
f = 36 gallons of 14%
n = 9 gallons of 19%