Question 1159146
A 20​% solution of fertilizer is to be mixed with a 70​% solution of fertilizer in order to get 50 gallons of a 60​% solution. How many gallons of the 20​% solution and 70​% solution should be​ mixed?
-------------
t = amount of 20%
s = amount of 70%
---
t + s = 50 --- total solution
20t + 70s = 50*60  --- total fertilizer
etc