The equation N(t) = 400/1+39e^-0.7t models the number of people N in a town who have heard a rumor after t days.
To the nearest whole number, how many people will have heard the rumor after 3 days?
I got appr 69 to the same calculation.
To find the number of people who have heard the rumor after 3 days, we need to plug in t = 3 in the given equation and round the result to the nearest whole number.
N(3) = 400 / (1 + 39e^(-0.7*3))
N(3) = 400 / (1 + 39e^-2.1)
N(3) ≈ 117 (rounded to the nearest whole number)
Therefore, approximately 117 people will have heard the rumor after 3 days.