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12-12-2016
Mathematics

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A certain drug is made from only two ingredients: compound A and compound B. There are 8 milliliters of compound A used for every 5 milliliters of compound B. If a chemist wants to make 1222 milliliters of the drug, how many milliliters of compound A are needed?

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Javerdabeast Javerdabeast

12-12-2016

3:2 ration of A to B
so out of the 5 total parts (3+2=5),

3/5 are chem a
2/5 are chem b
note this adds up to 5/5 or 100% of the final product

so 3/5*460 = parts of soltuion that is chem A

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