If there are 5 milliliters of compound A used for every 7 milliliters of compound B then in order to make 864 millimiters of the drug the chemist needed 504 millimiters of compound B.
Given that a certain drug is made from only two ingredients: compound A and compound B and there are 5 milliliters of compound A used for every 7 milliliters of compound B.
We are required to find the amount of compound B that is needed to make 864 milliliters of the drug.
We know that the ratio of 5:7.
let x be the multipliers,
then,
Compound A=5x,
Compound B=7x.
The equation will be:
5x+7x=864
12x=864
x=864/12
x=72
72 is the multiplier needed.
Compound B needed=72*7=504 milliliters.
Hence if there are 5 milliliters of compound A used for every 7 milliliters of compound B then in order to make 864 millimiters of the drug the chemist needed 504 millimiters of compound B.
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