SOLUTION: You need a 80% alcohol solution. On hand, you have a 60 mL of a 5% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: You need a 80% alcohol solution. On hand, you have a 60 mL of a 5% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?
Log On
Question 1099061: You need a 80% alcohol solution. On hand, you have a 60 mL of a 5% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution? Found 2 solutions by josgarithmetic, josmiceli:Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website! Let = mL of pure alcohol needed mL of alcohol in the 5% mixture
--------------------------------------------
225 mL of pure alcohol should be added
----------------------------------------
check answer:
OK