Question

The population of a city is 83,945 and grows continuously at a rate of 1.3% each year. What is the approximate population of the city in 21 years?
110,295

105,626

110,279

106,862

Answer 1

Someone please help!!!

Answer 2

Note: I have no idea what to do

Answer 3

use the formula

A = Pe^(r*t)

where

A = population in t years
P = initial population
r = growth rate
t = time in years

Answer 4

I dont know what the "e" is

Answer 5

e is the number 2.718... (it's like pi) and most calculators support it

Answer 6

Oh foreal?

Answer 7

if you were to type in e, your calculator should know what to do with it

Answer 8

yep definitely real

Answer 9

what if im using my iphone?

Answer 10

then use e = 2.71828

Answer 11

ok, ill try

Answer 12

so you will go from

A = Pe^(r*t)

to

A = 83945*2.71828^(0.013*21)

and that gives you

A = ??

Answer 13

I know Im wrong

Answer 14

what did you get

Answer 15

Its embarrassing... 29.03

Answer 16

yeah way too small

Answer 17

but that's ok, try it again

Answer 18

ok, 1 minute

Answer 19

k

Answer 20

110,295?

Answer 21

nailed it

Answer 22

Thanks man!!!! :D

Answer 23

you're welcome

Answer 24

If i ever need help again, can i ask you?

Answer 25

sure, but don't hesitate to give it a try and show me what you got

Answer 26

of course! catch you later man

Answer 27

cya