SOLUTION: I have 3 problems that I am stuck on. Here is the first question.
Many fruit drinks are actually only 5% real fruit juice. If you let 2 oz. of water evaporate from 12 oz. of a
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Many fruit drinks are actually only 5% real fruit juice. If you let 2 oz. of water evaporate from 12 oz. of a
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Question 339842: I have 3 problems that I am stuck on. Here is the first question.
Many fruit drinks are actually only 5% real fruit juice. If you let 2 oz. of water evaporate from 12 oz. of a drink that is 5% fruit juice, what is the percent concentration of the result?
Is there a formula for evaporation?
.12
____ - x = 2(.02 x .05)
.05
Is this how you get started. Thanks for your help Answer by solver91311(24713) (Show Source):
Sorry, but your "this is how you get started" makes no sense whatsoever. If you do the indicated arithmetic, you get an answer of about 2.4 percent. If you start with a given concentration and then remove some of the water you must end with a greater concentration.
If you begin with 12 ounces of a 5% solution, then 0.05 times 12 = 0.6 oz is the amount of pure fruit juice you have and that means you began with 11.4 oz of water. Reducing the water by 2 oz leaves 9.4 oz of water added to the 0.6 oz of pure fruit juice that wasn't reduced at all gives you 10 oz of mixture. 0.6 divided by 10 = 0.06 = 6%. And that makes sense.
John
My calculator said it, I believe it, that settles it
