Question

A virus has infected 400 people in the town and is spreading to 25% more people each day.

Write an exponential function to model this situation, then find the number of people that will be
infected in 10 days.

Answer 1

N = 400(1.25^t); 3725

Explanation:

25% more is 125% of the previous, which is 1.25

N = 400(1.25^t)

t = 10

N = 100(1.25^10)

N = 3725.290298

Around 3725 people