A certain drug is made from only two ingredients: compound A and compound B. There are
milliliters of compound A used for every
milliliters of compound B. If a chemist wants to make
milliliters of the drug, how many milliliters of compound A are needed?
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If we had 13 ml of the drug then there'd be 5 ml of A and 8 ml of B.
So A is present in the ratio of 5:13
from here its just arithmetic
say 'x' is the component used as a factor for both compounds.
Since the total amount of mixture will be1196mL then
5x + 8x = 1196
Solve for the value of x
After getting its value, you'll have compound A as 5x = 5 times the value of x
5/8x+ 8/8x--> 13/8x= 1196
460 mL compound A
736 mL compound B