SOLUTION: Tutors, please please help me solve the below word problem. :( THANK YOU!! A model for the number of people N in a college community who have heard a rumor is given by the equ

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Tutors, please please help me solve the below word problem. :( THANK YOU!! A model for the number of people N in a college community who have heard a rumor is given by the equ      Log On


   



Question 143983: Tutors, please please help me solve the below word problem. :( THANK YOU!!
A model for the number of people N in a college community who have heard a rumor is given by the equation:
N = P (1 - e-0.15d)
where P is the total population of the community and d is the number of days elapsed since the rumor began. If the number of students is 1,000 find the number of days when 500 students would have heard the rumor

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Given N+=+P+%281+-+e%5E%28-0.15d%29%29+ P=1000, N = 500
500+=+1000+%281+-+e%5E%28-0.15d%29%29+
0.5=+%281+-+e%5E%28-0.15d%29%29+
-0.5=+-+e%5E%28-0.15d%29+
0.5=++e%5E%28-0.15d%29+
ln%280.5%29+=+-0.15d
-0.69314+=+-0.15d
4.62+=+d+