SOLUTION: If medicine is mixed three parts water to one part solution,and this made 80ml of medicine how much solution was used?

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Question 1017040: If medicine is mixed three parts water to one part solution,and this made 80ml of medicine how much solution was used?
Found 2 solutions by macston, josmiceli:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
x=amount in 1 part=amount of solution
.
3x=3 parts=amount of water
.
x+3x=80ml
4x=80ml
x=20ml
.
ANSWER: 20 ml of solution was used.
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Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = ml of solution
+80+-+x+ = ml of water
--------------------------
+x+%2F+%28+80+-+x+%29+=+1%2F3+
+3x+=+80+-+x+
+4x+=+80+
+x+=+20+
20 ml of solution was used
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check:
+x+%2F+%28+80+-+x+%29+=+1%2F3+
+20+%2F+%28+80+-+20+%29+=+1%2F3+
+20%2F60+=+1%2F3+
+1%2F3+=+1%2F3+
OK