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A certain drug is made from only two ingredients: compound a and compound
b. there are 6 milliliters of compound a used for every 5 milliliters of compound
b. if a chemist wants to make 1089 milliliters of the drug, how many milliliters of compound a are needed?

Respuesta :

594 milliliters. so for every 6 ml of compound a 5ml of compound b is used. 5+6=11. 1080÷11=99 , hence 99×6=594

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