SOLUTION: how many milimeters of a 15% acid solution and how many milimeters of 3% acid solution must be mixed to get 180 milimeters of a 10% acid solution

Question 501597: how many milimeters of a 15% acid solution and how many milimeters of 3% acid solution must be mixed to get 180 milimeters of a 10% acid solution
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
---------percent ---------------- quantity
Acid I 15 ---------------- x ml
Acid II 3 ---------------- 120 - x ml
Mixture 10.00% ---------------- 120

15 x + 3 ( 120 - x ) = 10 * 120

15x+ 360 - 3 x = 1200
15 x - 3 x = 1200 - 360
12 x = 840
/ 12
x=70 ml 15.00% Acid I
50 ml 3.00% Acid II

RELATED QUESTIONS
A chemist needs 200 milimeters of a 49% acid solution but only has 37% and 57% acid... (answered by checkley77)

In yoir chemistry class you need a 3% boric acid solution. How many milimeters of 5% acid (answered by josgarithmetic)

how many liters of 50% acid solution must be mixed with a 30% acid solution to get 180... (answered by mananth)

how many liters of a 70% acid solution must be mixed with a 15% acid solution to get 385L (answered by Alan3354)

How many liters of a 90% acid solution must be mixed with a 15% acid solution to get 525... (answered by josgarithmetic)

how many liters of a 60% acid solution must be mixed with a 15% acid solution to get 405... (answered by ankor@dixie-net.com)

How many liters of a 70% acid solution must be mixed with a 15% acid... (answered by josgarithmetic)

How many liters of a 50% acid solution must be mixed with a 15% acid solution to get 350... (answered by ikleyn)

how many liters of 70% of acid solution must be mixed with a 15% acid solution to get 440 (answered by Alan3354)