SOLUTION: a chemist has one solution that is 20% saline and a second that is 65% saline. How many gallons of each should be mixed together to get 120 gallons of a solution that is 50% saline

Question 940989: a chemist has one solution that is 20% saline and a second that is 65% saline. How many gallons of each should be mixed together to get 120 gallons of a solution that is 50% saline.

Found 2 solutions by josgarithmetic, Alan3354:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
and a second that is 65% saline.
?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a chemist has one solution that is 20% saline and a second that is 65% saline. How many gallons of each should be mixed together to get 120 gallons of a solution that is 50% saline.
=================
t = 20%
s = 65%
---
t + s = 120 (total solution)
20t + 65s = 120*50 (total salt)
---
Solve for t & s
RELATED QUESTIONS
A chemist has one solution that is 20% saline and a second that is 65% saline. How many... (answered by drk)
A chemist has one solution which is 20% saline and a second solution which is 65% saline. (answered by richwmiller)
I just need help setting this up. A chemist has one solution that is 20% saline and a (answered by stanbon)
A chemist has one solution that is 20% acid and a second that is 65% acid. How many... (answered by josmiceli)
a chemist has two saline solutions. one is 2% salt, and the other is 6% salt. how much of (answered by ewatrrr)
How much of a saline solution that is 20% saline should be mixed with 200 ounces of a... (answered by ikleyn,greenestamps)
How much of a saline solution that is 20% saline should be mixed with 200 ounces of a... (answered by stanbon,ikleyn)
How many liters of 70% methyl solution should be added to 200 liters of a 20% methyl... (answered by ewatrrr,stanbon,richwmiller)
A chemist has one solution that is 20% acid and a second that is 50% acid. How many... (answered by Earlsdon)