SOLUTION: Solution A is 12% acid and Solution B is 4% acid. If a technician wants to mix them to make 60 liters of Solution C which is 10% acid, how many liters of each should be mixed toget

Question 749228: Solution A is 12% acid and Solution B is 4% acid. If a technician wants to mix them to make 60 liters of Solution C which is 10% acid, how many liters of each should be mixed together? I REALLY need help!!!
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of solution A needed
Let = liters of solution B needed
= liters of acid in solution A
= liters of acid in solution B
---------------------------------
(1)
(2)
----------------------------
(2)
(2)
Multiply both sides of (1) by and
subtract (1) from (2)
-----------------
(2)
(1)

and, since
(1)
(1)
(1)
45 liters of solution A are needed
15 liters of solution B are needed
check:
(2)
(2)
(2)
(2)
(2)
OK

RELATED QUESTIONS
Solution A is 12% acid and Solution B is 4% acid. If a technician wants to mix them to... (answered by roy_algebra2006)

Solution A is 12% acid and Solution B is 4% acid. If a technician wants to mi them to... (answered by josgarithmetic)

Solution A is 12% acid and Solution B is 4% acid. If a technician wants to mix them to... (answered by Alan3354)

Solution A is 8% acid and Solution B is 4% acid. If a technician wants to mix them to... (answered by Abbey)

This is a word problem. Solution A is 8% and Solution B is 4%. If a technician wans to... (answered by stanbon)

A chemical technician had Solution A which is 10% and SOlution B which is 6% acid. If the (answered by solver91311)

Solution A is 25% acid and solution B is 40% acid. How much of each is needed to make 60... (answered by nyc_function,modi.kk91)

A chemist wants to obtain 80 liters of a solution is 12% hydrochloric acid. How... (answered by checkley79)

(Make a chart and solve) A chemist has two solutions, Solution A is 8% acetic acid... (answered by Alan3354)