SOLUTION: Solution A has 16% acid. Solution B has 9% acid. How many liters of each should be mix together to get 35 liters than its 12% ACID? THANK YOU

Question 647639: Solution A has 16% acid. Solution B has 9% acid. How many liters of each should be mix together to get 35 liters than its 12% ACID?
THANK YOU
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of solution A
Let = liters of solution B
= liters of acid in 16% solution
= liters of acid in 9% solution
------------
(1)
(2)
------------
(2)
(2)
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)

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

RELATED QUESTIONS
Solve and Show your solution A chemist has to mix a 25 percent acid solution with a 35 (answered by ewatrrr,ikleyn)

Joan has one solution that is 18% acid and a second solution that is 43% acid how many... (answered by Theo)

Theresa Morgan, a chemist, has a 25% hydrochloric acid solution and a 50% hydrochloric... (answered by edjones)

Theresa Yee, a chemist, has a 25% hydrochloric acid solution and a 50% hydrochloric acid... (answered by rwm)

A chemistry student has a 15% hydrochloric acid solution and a 40% hydrochloric acid... (answered by Maths68)

A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How (answered by stanbon)

Theresa Morgan, a chemist, has a 20% hydrochloric acid solution and a 50% hydrochloric... (answered by josgarithmetic)

Theresa Yee, a chemist, has 25% hydrochloric acid solution and a 50% hydrochloric acid... (answered by rwm,josmiceli)

How many liters of 70% methyl solution should be added to 200 liters of a 20% methyl... (answered by ewatrrr,stanbon,richwmiller)