SOLUTION: In a certain medical test designed to measure carbohydrate tolerance, an adult drinks 3 ounces of a 40% glucose solution. When the test is administered to a child, the glucose conc

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Question 1145368: In a certain medical test designed to measure carbohydrate tolerance, an adult drinks 3 ounces of a 40% glucose solution. When the test is administered to a child, the glucose concentration must be decreased to 10%. How much 40% glucose solution and how much water should be used to prepare 3 ounces of 10% glucose solution?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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How much 40% glucose solution and how much water should be used to prepare 3 ounces of 10% glucose solution?
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("ounces"?)

x of 40%
3-x of 0% or water

40x%2B0%283-x%29=10%2A3
40x=30
x=3%2F4---------------"ounces" of the 40% glucose...