Ratio problem with basic algebra | Linear equations and inequalities | Algebra Basics | Khan Academy

A slightly more involved ratio problem with algebra. Created by Sal Khan.
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Algebra basics on Khan Academy: Topics covered in a traditional college level introductory macroeconomics course
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[@michaelfalco5587]

You kick ass! I've been struggling with ratios since i started algebra. this clears it up thanks!

[@inthepeaceofthenight]

sal i am an adult and trying to re-learn a lot of my basic math that ive lost over the years. i am sure this has occurred to you but it would be fantastic if you could put these videos in some kind of order so people would know which to watch first and in what order the rest of the lessons are intended to be in. thanks!

[@chripranqe]

it is in an order, you can check his channel and go to playlists and check em out.

[@KeshiaFowler]

Same

[@therectangle7893]

I learnt more in this video than i did in a whole 2 weeks of maths

[@juanthemilkman480]

fax

[@MarkPineLife]

I'm committed to the whole playlist. 🔔

[@sahiliqbal4856]

his explaining is awesome

[@wassupwassup6153]

It is 😁

[@jessepanda4589]

This is so easy and I'm in year 8 his voice is nice and he explaining is excellent

[@AbelAbrahamSep6]

im year 8 rn, 8 yearss apart

[@renniechen1918]

Thank you so much Sal!! Your rock!

[@AXELBLAZE1998]

Such a lucky school -_- 4 : 7 boys to girls ratio :'( Its my Dream :(

[@danishartz5493]

So you can impress them with your impressive match skills xD

[@fatimahabib6046]

Thank u especially for this video I am in grade 7 now but my issue was in algebraic ratios and u made me understand it very easily

[@fabiantamay5441]

Thanks!!!!!!!!!!!!!!!!!!!!!!! Sal ur the best

[@deaddeer7179]

A video of 13 years ago has helped me so much

[@apuglin]

You teach me so much more than my algebra teacher n.n

[@sakshipawar5852]

11 yrs old message 😮😮😮

[@DessyFerdinandus]

Very helpful. Thanks!!

[@dvdbdvesnsvdgsvdv-fw9kd]

THIS WAS SOOOOOOO HELPFUL THX!

[@melese1988]

It was illuminating.

[@Shikamaru608]

you know that its 4:7, you add one to 7 to make it 8, you have 5 groups, 5x1=5, and you see 5 groups cause 4:7 total is 11 people, 11/55 is 5, so yeah

[@pushpasridharan7764]

This video is really great

[@HamzaAliAkram]

this guy is a genius

[@zuhalgokcen]

Thanks a lot!

[@imk03]

My whole school life explain anything this easy thanks

[@julianavalentin-yk5sx]

soooooo amazing such a good teacher

[@chardonnaysmith5469]

lets do this !

[@milesthronson1442]

This is my second video. If you have enough of these I will literally go back to school lol

[@kvbb1894]

Thanks for the help

[@atifahali]

i learned a lot

[@selamdemelashmeshesha]

thank you so much tracher

[@aiancapulo4032]

ratio

[@aerysthawargod]

Now I may be a simple high school student but I believe that you could just use logic and add one girl. Not to give any offense because you have honestly helped me so much, but you did over complicate this equation

[@electricbuttercup7954]

that wouldn't work

[@thatbackiscrazy1265]

Thats wrong 😂😂😂

[@michaelvictoriareese]

If you multipled 1 girl (which is the correct number of girls to add in relation to boys to get a ratio of 1:2 aka 4 boys for every 7 plus 1 girl) by 5 groups (or the number of groups of students in the total of 55 students) you'd get the correct answer of 5 girls. But I do agree, there's got to be an easier way of setting up the equation to get this answer from start to finish.

[@michaelvictoriareese]

And actually, this person is correct based on how Khan worded the question when first trying to tackle the problem. He stated "How many girls do I need to add for the ratio to become 1:2?" To make the originally stated ratio of 4 boys : 7 girls equal to the ratio of 1 boy : 2 girls, the correct answer IS one girl (4 boys divided by 7 plus 1 girls reduces to a 1:2 ratio). I think what the narrator was actually trying to ask is "How many girls do I need to add TO THE TOTAL NUMBER OF STUDENTS for the ratio to become 1:2? Hence all disciplines (like math and English) being paramount. Also, there are more direct ways of setting up this equation as previously mentioned.

[@sacredroaring8789]

This was made 12 years ago

[@occor9192]

thanks

[@nobleyboi9904]

I bet my dad that he would give me a Ps5 if I got full marks in my test and because of you I got a Playstation!!!!!!!!! Thank you Khan Academy

[@xenadarien3329]

I'm sure I'll top in my class now

[@viixiivxiiviix524]

Sal valcano from impractical jokers awsome i am joking

[@oscarburton4688]

I love impractical jokers all 4 of them r awesome sal,murr,joe and q are awesome

[@HamzaAliAkram]

yeah its 4 everything (including maths)

[@HamzaAliAkram]

this guy>>>my teacher

[@zeehehex]

yup too easy

[@KELLY-bo9qx]

"And seven girls, and seven girl" ShOoK

[@joselomas670]

i think i got this

[@julioestorga9546]

1:57

[@sumeshs2119]

12 yrs ago!😳

[@codewithdhiru4198]

Are you are a partner of the masai coding school your video link are available there ...//????

[@angelstarfire]

Thank you so much!! I finally understand ratios (>~< )

[@maybeg.8419]

(○_○)

[@Shadow-xf8by]

(｀_´)ゞ

[@anushkabhandari9508]

4x7 28

[@SergiyMichael]

Thats an awkward way to solve this, you can just multiply the new ratio so that the boys numbers match, 4:8, and then extract the difference, 0:1, so that is 1 girl more per each 4+7 = 11 ppl, total 55/11=5, 5x1=5 girls

[@buzzyt9890]

This vid was released 2 months and some days after i was bornxd

[@unclesam003]

ok dude ur point taken . now happy. now plz excuse me

[@TheAdela7]

Is that an app you use to make your videos? Or what is it?

[@buzzyt9890]

Its a drawing pad

[@camrong49]

💎if this video is good

[@camrong49]

Like it

[@kaiwenlui4397]

March 8 2016

[@originalname69]

March 3rd 2020

[@wwelover999]

thxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthxthx

[@andyli9976]

EmilKing that is too muck thx for sal

[@nkpen22]

@@andyli9976 muck

[@betrixe16]

ppl there is a litle part where he did it wrong!! ^_^ he's no a good teacher 2!! but anyways i learned somthing!!! >.< bbut i still hating math!

[@TheComedydude1]

@unclesam003 well sir if you're so smart why are you watching this?

[@theilluminatipomegranate3285]

TheComedydude1 Who are you talking?

[@mohammedusman1699]

Well you just confused me

[@haider5583]

haha test go brr

[@TehRockLord]

KZbin isnt for learning

[@LukeSumIpsePatremTe]

If only you knew how to watch videos you like.

[@guestkerrigan6788]

I DONT LIKE KHAN SO I DONT LIKE THIS VIDEO