SOLUTION: The chemists are trying to make the world's longest lasting perfume. On their first attempt, the chemists combined 5 milliliters of a substance containing 2% sandalwood with anoth

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Question 1146451: The chemists are trying to make the world's longest lasting perfume.
On their first attempt, the chemists combined 5 milliliters of a substance containing 2% sandalwood with another substance containing 6% sandalwood to get a substance containing 5% sandalwood. How many milliliters of the substance containing 6% sandalwood must the chemists have used?

Found 2 solutions by josgarithmetic, Glaviolette:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
5 ml. of 2% sandalwood
v ml. of 6% sandalwood
v+5 ml. of 5%

5%2A2%2B6v=5%28v%2B5%29
-
6v%2B10=5v%2B25
highlight%28v=15%29------------milliliters of 6% sandalwood

Answer by Glaviolette(140) About Me  (Show Source):