SOLUTION: How many mL of acid must be added to 50 mL of a 10% acid solution in order to produce a 20% acid solution?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: How many mL of acid must be added to 50 mL of a 10% acid solution in order to produce a 20% acid solution?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 631281: How many mL of acid must be added to 50 mL of a 10% acid solution in order to produce a 20% acid solution?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
How many mL of acid must be added to 50 mL of a 10% acid solution in order to produce a 20% acid solution?
**
let x=amt of acid to add
10%*50+100%x=20%(50+x)
5+x=10+.2x
.8x=5
x=6.25
amt of acid to add=6.25 mL