Compound Interest

Why wouldn’t you use the rule of 72 to answer the question in the first place?

Bro is a organic chemistry teacher and Not pregnant but he never fails to deliver 🗣🔥🔥📢 ❗❗

72/6=12 final answer

Ln(2)/Ln(1.06)=Log[1 3/50,1 496589070627808403/9269035929372191597]+11~ Ln(2)/Ln(1.06)=11.8956610459418856082820178760318855605547129546519739074476459963044237110535035090880026517681727682160633681086953643911432785579679207102707963227466888065251327224209240597848465960627948131250277332471225196654366711754447878039589095888095616061336162623170973992994586126220881578017971322731610645548704391306948403130709357021788901939289040404629927819309350909752419143792695880097880032142193182489232281037144531192564138353703527365813220083319919566960774101334787520433291470185353301356135079743057766810731398617229092053865892723122026002434903404748182273454836428

It’s in my head. I didn’t use a calculator and got the answer correct.

5000(1+10/100/12)^(12(20)) starts with 36640.36816624865035997965988927502912368889468729394016682145935736109682743334830679300503976831887541427640631376593109510393869953791685027809030638703616140098212175478483505089938834666591036903304921397212496780226817043997777604140666605427992940762282965428462779130584715826674420517538654796914980542238206992249341720379555596794393557405598040345793681112139195599609480962000639804302578930888295767963343880961429562354489726226298347662338218226442177295577338775626793693316707180392317794686696716668456740543805592136578903835969221551749252307066116724026137688307205639053155383942080880569892961713217652278984767833270796789754306127406425489666532570150454099051711815953573660153621425682022818374608318219311792350425023898419904108429761572798516785263562939466601907033767175976852156083463187979587614603806012031039884601966861026555654475733585817753954839258232335627756669627438184924901412839486584205061991245003187885191237235233058757853279951933996391470440316848555918928894821779583228546139294525015213731097989388591230991569126811881949808371493871353681081427877056315316764383353800673249508577572184968474762278682694190263067885262460409648317345224285490514719208870740007006123195836593334803800184635417131978061115051565753978756945346036145216795090915403317270103973081418369059727169282954134471071307465041681579424430567550989219130584537595861698992636309296488452894671444773012524235512864898517461036526707886052826340340539911560293835939388153361071786432038030522229254431918838317251505518513363166611761777579737945519529281445858090956117094543745349341117167411318614300874614855475986953225787020347607113943754640693427981505404340410708959847028022583

5000(1+10/100/12)^(12(20))=36640 742288990949017923132972407552889009260961897688591892689604000496775156279027062479052048430641780712349971118778044343666640609418851852409455083831395133451028337393978425735007482253528631070968844966561082710897740267799461797113897387562470906696089468115702553659850183709373592936947301976331430149566478632028031919758254790799072560453400163806498784437721161769945181840868934914665745233791032723458307336109818726812501338016356517367567082865368444623371259013202657681182912860801/2016178815060135305992968561341432549025552674230631182193620248301700260533166500260971284986181039593589856075586973115578338468572114415523360499347721359175906784298444568166875545294261423471834525022367015326915217723314194415986341156871174626219340595200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

5000(1+10%/4)^(4(20))=36047.839081147468012830097332895674422383004545311000639893996887525398364164592156313090012118074453796449278704476414960709033287786961284707672564892445006875576526815719953238126166635633774312720729871006852818027255125343799591064453125

1000(1.09)^20=5604.4107677782919374398655242916531006801

1000(1+9%/1)^10=2367.36367459211723401

Thx my exam is Tomorrow

You made this much easier than our teacher

At first I thought it was 900, 1800😅 because (1000÷100)9 = 90 × 10 = 900

Why am I not getting d same with my calculator 🥲

Is there a formula on how to solve for N

9%? If only ... lol

How did you Ln?

last question got me tweaking wtf

What if t is less than a year

For the sake of the students. On the last problem for fixed interest the formula you use is incorrect! Fixed interest is A=P(1+rt). The variable n=number of times interest is compounded in a year. You should come to 2=1+.06t. Finalizing at 16.6666667 years.


Be on the look out for FIXED vs COMPOUND two very similar but different formulas.

A single formula to solve multiple problems

He is a great teacher. But education is still a slave maker

please let me know how you calculate gains

Still very helpful in 2024 🤝

Thx pookie

Thanks for the breakdown

What about yearly instead of quarterly or monthly? What wiuld the n be for that?

isn't A compound capital? thats what my textbook says-

Thank you for your service pookie

Nice informating v❤❤❤

helped me so much, it was so easy after watching this video. Thank you !!

t what does it mean

it says 9% annually so should'nt the 0.09 it be divided by 12

I had a problem and each time I worked it out I got a different answer than what it was supposed to be and I do not understand what I did incorrectly. It was giving me answers with no decimals but I don’t know why.

I found out it was the way it was being inputted into the calculator.

What would I put down if it said the interest was compounded continuously

Thank you this helped me so much 😁

you and khan academy have singlehandedly saved us all

What's that clickin'😅

I'm in math rn

so like don't mind but like you do all kind of math like algebra , indices and like ratios so like don't you ever forget them after a while . for e. g I give you a paper right now with all the questions of maths problems that you made videos own . so will you able to answer those or not ?

We can find (t) with points? How please?

Guy just made over 7 million sub. With 1 screen and his brain 👏👏👏

How did you get the amount of 36,o47.84 if your going to rise to the power of 80 multiply that with 1.025? How did you get it?

sir it is good explanation but n stands for what?

Organic chemist: This is how compound interest works.
Millennials: tHe RiCh GeT rIcHeR

Please can you help me by solve the problem with out a calculator,,

$850,000,000

Annual interest of 17%

After 10 years?

(Need the TI-84 Graphing Calculator)

How is n=4!????