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April 18, 2014

Homework Help: math

Posted by Riana on Sunday, December 23, 2012 at 1:35am.

A certain antibioyic reducesthe number of bacteria in your body by 10% each dose
a) if four doses of the antibiotic are taken, what percent of the original bacterial population is left.
b) biologists have determined that when a person has a bacterial infection, if the bacterial level can be reduced to 5% of its population, the person can fight off the infection. How many doses must be administered to reduce the bacterial population to the desired level?



Its a geometric question.

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