SOLUTION: Pola a massage therapist, needs 5 ounces of a 14% lavender oil solution. She has only 5% and 30% lavender oil solution available. How many ounces of each should Pola mix to obtain
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Question 1096596: Pola a massage therapist, needs 5 ounces of a 14% lavender oil solution. She has only 5% and 30% lavender oil solution available. How many ounces of each should Pola mix to obtain the desired solution
FOR 5% I GOT 3.2
FOR 30% I GOT 1.8
IS THIS CORRECT?? Answer by ikleyn(52778) (Show Source):
Let us check if this is correct.
The amount of the pure lavender oil in 3.2 ounces of the 5% solution is 0.05*3.2 ounces.
The amount of the pure lavender oil in 1.8 ounces of the 30% solution is 0.3*1.8 ounces.
In total, there are 0.05*3.2 + 0.3*1.8 = 0.7 ounces the pure lavender oil in your solution.
Then the oil concentration in your solution is 0.7/5 = 0.14 = 14%.
