SOLUTION: How much pure acid must be mixed with 80 liters of 20% acid to get 90 % acid?
Algebra.Com
Question 561179: How much pure acid must be mixed with 80 liters of 20% acid to get 90 % acid?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
How much pure acid must be mixed with 80 liters of 20% acid to get 90 % acid?
Let x = amount (liters) of pure acid added
then
.20(80) + x = .90(80+x)
16 + x = 72 + .90x
16 + .10x = 72
.10x = 56
x = 560 liters
RELATED QUESTIONS
How much pure acid must be mixed with 800 liters of 20% acid to get 70% acid?
I got... (answered by nerdybill)
1-HOW MUCH 5% ALCOHOL MUST BE MIXED WITH 10% ALCOHOL TO GET 2000ml OF 6% ALCOHOL?
2- HOW (answered by josmiceli)
How much pure acid should be mixed with 2 gallons of an 80% acid solution in order to get (answered by oberobic)
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 90% acid solution must be mixed with a 30% acid solution to get 600l (answered by josgarithmetic)
how much pure acid should be mixed with 3 gallons of 20% acid solution to get a 40% acid... (answered by tommyt3rd)
I have problems on knowing where to start on story problems and what to do with them.... (answered by robertb,richwmiller)
How many liters of pure acid must be mixed with 20 liters of a 15% acid solution to get... (answered by ankor@dixie-net.com)
How many liters of pure acid must be mixed with 20 liters of a 15% acid solution to get a (answered by josmiceli)