Question

The population of fruit flies tripled every day and the population today is 200 fruit flies.

a) Write an equation modeling the growth in the population of fruit flies.
b) What was the population of fruit flies 3 days ago?

Answer 1

1. Equation = 600n
2. Number of fruit flies after 3 days = 1800 fruit flies

Explanation:

Given:

Number of fruit flies = 200

Rate of growth = 3 times per day

Find:

A . Equation

B . Number of fruit flies after 3 days

Computation:

A . Equation = 3n(200)

Equation = 600n

B. Number of fruit flies after 3 days

Number of fruit flies after 3 days = 600(3).

Number of fruit flies after 3 days = 1800 fruit flies