SOLUTION: Jeremy's Graphics uses one cleanser that is 25% acid and a second that is 50% acid. How many liters of each must be mixed together to produce 10 liters that is 40% acid?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Jeremy's Graphics uses one cleanser that is 25% acid and a second that is 50% acid. How many liters of each must be mixed together to produce 10 liters that is 40% acid?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 863819: Jeremy's Graphics uses one cleanser that is 25% acid and a second that is 50% acid. How many liters of each must be mixed together to produce 10 liters that is 40% acid?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Jeremy's Graphics uses one cleanser that is 25% acid and a second that is 50% acid. How many liters of each must be mixed together to produce 10 liters that is 40% acid?
---------------------
Quantity Eq:: t + f = 10 liters
Acid Eq::::: 25t+50f = 45*10
-----------------------------------
Modify for elimination::
25t + 25f = 250
25t + 50f = 450
--------------------
25f = 200
f = 8 liters (amt. of 50% solution needed)
-------------------------
Solve for "t":
t + f = 10
t + 8 = 10
t = 2 liters (amt of 25% solution needed)
==================
Cheers,
Stan H.
------------------