Question

I need help with B and C! MEDAL!

Answer 1

There are 20 parrots at the animal sanctuary. Their population is increasing at a rate of 15% per year. There are also 24 snakes at the sanctuary. Each year 4 more snakes are born. Part A: Write functions to represent the numbers of parrots and snakes at the sanctuary throughout the years. Part B: How many parrots are at the sanctuary after 10 years? How many snakes are at the sanctuary after the same number of years? Assume there are no deaths to the animals during this time. Part C: After approximately how many years is the number of parrots and snakes the same?

Answer 2

show me your functions for part A

Answer 3

i dont have one i guessed it was 20 and 24

Answer 4

not quite, let's take it from the beginning

Answer 5

let's let x = the number of years

the function for parrots is

number of parrots = (starting number of parrots)(1+percent increase)^x

fill in the information from the problem and let me know what you get

Answer 6

can you show me a example

Answer 7

read the problem

"starting number of parrots" = ?

Answer 8

20

Answer 9

good, and what is the percent increase?

Answer 10

15

Answer 11

good

so

number of parrots = (starting number of parrots)(1+percent increase)^x

becomes

number of parrots = (20)(1.15)^x

with me so far?

Answer 12

no where does the 1 come from

Answer 13

percent increase = 15%, which is equal to .15

1 + percent increase = 1.15

make sense?

Answer 14

yep