February 24, 2017

Homework Help: math

Posted by julie on Tuesday, April 24, 2012 at 9:23am.

A company begins a radio advertising campaign in Chicago to market a new soft drink. The percentage of the target market that buys a soft drink is estimated by the function f(t)=100(1-e^-0.01t), where t is the number of days of the campaign. After how long will 80% of the target market have bought the soft drink?

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