Question

See attachment for Q.

Answer 1

do you know how many is e ?

Answer 2

no what u see is what i have.

Answer 3

e is the Euler number and has a value of 2,71...

have you learned it this ?

Answer 4

No someone has said that to me & i asked my instructor & he said that was wrong for what i'm doing.

Answer 5

ok

but this formula what you have wrote there is sure right ?

Answer 6

I think so. It says Continuous Compound Interest.

Answer 7

ok

so for you can calcule from this formula the r so for this you need us the logarithm natural with hope that you know has base of e

yes ?

Answer 8

so there are

A=Pe^(rt)

yes ?

Answer 9

yah

Answer 10

so do you know or do you have idea for how we can calcule this r using my opinion with logarithm natural ?

Answer 11

not really. Whats logarithm natural?

Answer 12

yesterday i asked a Q like this. http://openstudy.com/users/joyce153#/updates/508c2585e4b0d596c46114f3

Answer 13

i got was wrong. the answer was supposed to be 6.979%

Answer 14

so there are

A=Pe^(rt) make ln on both sides and will get so but firstly divide both sides by P and will get

A
--- = e^(rt) so ok ? and now us ln on both sides and will get
P

ln(A/P)=lne^(rt) but hope os much that you know the property of logarithms and so you know that

lne^(rt) =(rt)lne so these is ok ,do you understand it sure

so i will continue it

Answer 15

ok ?

Answer 16

tel me please so can i continue it ?

Answer 17

i'm trying to work it out so to see if i understand.

Answer 18

ok let's go

wait it

Answer 19

so you dont like write it here ?

Answer 20

ok i think i'm understanding. what next?

Answer 21

ok but i like see it how you make the calcules ,ok ?

Answer 22

you dont like continue it here ? please ...

Answer 23

(rt)lne= ?

Answer 24

ln(A/P) = ?

Answer 25

ok i'm using this one to make sure this is right cause i got it wrong yesterday so i know what the answer is supposed to be.

Answer 26

i'm setting it up like this.
\[\ln \frac{ 17,177 }{ 11300 }=\ln e ^{(72t)}\]
Is this right?

Answer 27

on the exponent of e why you have wrote there 72t ?

or i see it wrong ? there is 72r ?

Answer 28

so because you know the t=72 ,or not ?

Answer 29

oh that's supposed to be r

Answer 30

yes need being 72r

and can you continue it now ?

Answer 31

idk what to do next.

Answer 32

why this is very simple using property of logarithms

ln(A/P) =(rt)lne

do you understand it why ?

Answer 33

so because loga (b)^x =xloga(b) this is property of logarithms ,yes ?

Answer 34

?

Answer 35

so and hopw so much that do you know again sure that loga (a)=1

logarithm base a of a equale 1

yes ?

Answer 36

ok ? do you understand it ?

Answer 37

Sorry not at all.

Answer 38

ok what not ?

Answer 39

all of it. it sounds nothing like what i've been doing.

Answer 40

why ? how you want to solve it ? write it here please now and we will can clarifie it
hope so much

Answer 41

yesterday i asked a Q like this. http://openstudy.com/users/joyce153#/updates/508c2585e4b0d596c46114f3
The answer I got there was wrong. the answer was supposed to be 6.979%
if u can explain how to get 6.979% as the answer then that will help.

Answer 42

this question was exactls like this asked here now ?

Answer 43

ok i understand it so this was answered to you exactly how i have wrote firstly here above for you with difference that there not have wrote step by step

there you have got the final answer

ok ?

Answer 44

i keep trying to calculate that but i'm not getting 6.979% as the answer.

Answer 45

so we have got there above

ln(A/P)=(rt)lne

ok ?

Answer 46

when u do it r u getting 6.979% ?

Answer 47

so moment how you calcule from this r ?

Answer 48

wait ?

Answer 49

do you know it how ?

Answer 50

ln(A/P/t)=r so can you tell me why ?

Answer 51

lol i'm just gunna guess cause it's due in like 2 min

Answer 52

lol THX for the help!

Answer 53

so if you puch the needed numbers will get sure the right answer

ok ?

Answer 54

was my pleasure and hope so much that you have understood it all right sure

Answer 55

good luck

bye