SOLUTION: If a medicine is mixed three parts water to one part solution, and this made 80ml of medicine. How much solution was used? 10,20,30,40 or 180ml

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: If a medicine is mixed three parts water to one part solution, and this made 80ml of medicine. How much solution was used? 10,20,30,40 or 180ml      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 896055: If a medicine is mixed three parts water to one part solution, and this made 80ml of medicine. How much solution was used? 10,20,30,40 or 180ml
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +s+ = ml of solution
Let +w+ = ml of water
------------------------
(1) +s%2Fw+=+1%2F3+
(2) +s+%2B+w+=+80+ ml
----------------------
(1) +3s+=+w+
Substitute this result into (2)
(2) +s+%2B+3s+=+80+
(2) +4s+=+80+
(2) +s+=+20+
--------------
There is 20 ml of solution