Question

A biologist noticed that the population of lady bugs isa sample double every 3days. The population of lady bugat the end of 12 days was 480. What was the intial population of lady bug

Answer 1

Answer:

let initial population of lady bugs be'x'

Step-by-step explanation:

after 3 days = 2x

after 6 days = 2× 2x = 4x

after 9 days = 2 × 4x = 8x

after 12 days = 2× 8x = 16x

population after 12 days = 480

16x = 480 => x = 30

Initial population was 30 Answer .