SOLUTION: how many pints of disinfectant that is 74% alcohol must be mixed with 5 pints of one that is 90% alcohol to obtain a disinfectant that contains 84% alcohol?
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: how many pints of disinfectant that is 74% alcohol must be mixed with 5 pints of one that is 90% alcohol to obtain a disinfectant that contains 84% alcohol?
Log On
Question 978701: how many pints of disinfectant that is 74% alcohol must be mixed with 5 pints of one that is 90% alcohol to obtain a disinfectant that contains 84% alcohol? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = pints of 74% disinfectant needed = pints of alcohol in 74% disinfectant = pints of alcohol in 90% diinfectant
-----------------------------------------------
3 pints of 74% disinfectant are needed
----------------
check:
OK
