My wife teaches elementary school and had a meeting this morning with other teachers. Picrelated is a 7th grade problem, none of them could solve it. >jannies This is political because literacy and math scores are plummeting across the western world
19
>>527978287A+B=46A=10+B/33A=30+B3A-30=B4A-30=464A=76A=19B=27
>>527978401>>527978502That was quick.
you can't have one third of an age so the problem is impossible
wait wtf how is the younger brother 10 years older, trick question
>>52797828719. I just took a rough ballpark guess of 30 for the older which made the younger 20, and the sum was a bit too high so I tried a slightly lower value of 27 (next value down that'a divisible in thirds) which made the younger one 19 and that added up correctly. I'm not big on fancy algebra stuff.
>>527978287>this is the level of kike controlled ameritard education
>>527978502>>527978589It's a simple system of equations problem. 2 variables and 2 equations. This is like a mid-level Algebra 1 problem. I took Algebra in 8th grade
>>52797828746 - 10 36 / 4 = 19 + 27I processed this in 0.1 seconds
>>527978502>>527978287you could of guessed 9 as the 1/3rd of the older brothers age and skipped all of this.>2*3=6+12==18>4*3=12+14==26>7*3=21+17==38>8*3=24+18==42it's just increments of 4 bros it's not that crazy.what's crazy is you guys will do mental gymnastics math like fucking jeets instead of using the simplest solution.
>>527978589Most people here are geniusesYou should be able to read this:GTKRWNTNDTKDTIDTFDTCDTADTSD
>>527979162>just guess the right answer broI did this in grade school, but in grad school you need to show a logical chain every time
here's one for all you math nerdsfind x if x^13=44,736,509,592,539,817,388,662,784 without using calculator or any computer algebra package
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-systems-topicI didn't even graduate highschool and know this.
>>527978287I became smarter than most teachers by the time I left high school.
>>527979162>instead of using the simplest solution.You post this right under my post? Really? My one line long solution?
>>527979162the most logical thought process is this one >>527978871 going backwards down from 50 (30+20) with numbers you can divide by 3
>>527978287Maths is redundant beyond the basics. Computers/calculators do it for you.
>>527978287I get that they are trying to teach important concepts, I just don't get why they are so retarded about it. You could easily apply to this to a scenario in chemistry or physics, but instead talk about the ages of brothers. You'd never face such a retarded problem in the real world.
>>527979304this + various total deaths
>>527979462That's because all the smart people left india behind.
>>527979389x is evenonly even that cycles to end in 4 ends in 4x is less than 100, but near to it (26 out of 27 digits)I'm guessing 94, though I'm surprised 0.94^13 is as much as 44%
>>527978502That’s too much work. Just subtract 10 from 46 and then figure the rest out in under a minute because you should have memorized multiplication tables. 36 is a low number. Sure, that kind of process could figure this out for much larger numbers, and this is a simple way to teach how it works, but learning and applying that A and B shit you just typed out is 100% a useless life skill.What’s even worse here is we’re dealing with very basic math, not Algebra. If OP’s scenario is true those teachers would fail third grade.
>>527980076yeah it's 94I gave this problem just this week to two 14 year olds I'm prepping for a math contest and both of them solved it, one kid managed to do it in under 5 minutes the "cleaner" solution goes as follows. as you mentioned the number has 26 digits so x has to be less than 100 since 100^13 has 27 digits. buy calculating the remainder of the sum of digits when divided by 9 you can deduce that the number leaves a remainder of 4 when divided by 9, and similarly you can determine that it leaves a remainder of 6 when divided by 11. the only number less than 100 which has those two properties is 94
>>527980365It's not a math task, it's reading comprehension.
>>527978287could the teachers not solve it either or did you mean are you smarter than a 7th grader, you dumb fuck teacher?
>>52797828746=A+BB=46-AB=(A/3)+1046-A=(A/3)+1046-A-10=A/346-10=A/3+A36=A/3+A36*3=A+A108=A*2108/2=AA=54B=28Dammit. Where did I fuck up??
>>527978287X + Y = 46X = 46 - Y3X = 138 - 3YX < YX = Y/3 + 103X=Y + 30Y + 30 = 138 - 3Y4Y + 30 = 1384Y = 1082Y = 54Y = 27X = 46 - 27X = 1919 is ten more than a third of 27, or 9The two brothers are 19 and 27 years old.Hail Hitler death to israel and tkd, tnd, tjd
>>527979599If you know how to set it up.
>>52797828714 and 88
>>527978287Over 9000
67
>>527980551I didn't think of the remainder approach. I'll remember that, thanks. Though I don't know the trick to dividing by 11 via the sum of the digits.
>>527978401Li>>527978502Chang>>527978622a mutt>>527978686blue
>>52798106046=A+BB=46-AB=(A/3)+1046-A=(A/3)+1046-A-10=A/346-10=A/3+A36=A/3+A36=4/3*A36/4*3=A27=AA=27B=19Got it!
>>527978622>>527978686Re read it. The younger brother is 10 years plus 1/3 of the older brothers age
Humans no longer need to hold the entirety of trivial pursuit in their brain. Teaching by a human should be limited to very little for students between 3 to 10yo, and the majority of it should be via technology. Teaching is an obsolete profession in the technological evolution of mankind. Brick and mortar schools should only be preK to 5th grade. Special needs to be addressed differently. Teachers go the way of the switchboard operator and their union in the dustbin of history. Technology holds more knowledge than all teachers in recorded history, and it is already in the minds of the very young shaping their world. A human teacher trying to reach the kids is no longer a viable learning pathway. You want social interaction from young people together do it at the community center and sports programs.
Can you explain in your own words why none of you do it that way? >>527979038>46 - 10 36 / 4 = 19 + 27Sumtot 4 6 10 3 6 quarters 9 10 19 9 27 (checksum 19 27 3 16 46)It’s the obvious entry point why does no one do it that way ?
>>527979462Thats actually a huge problem. Its called "brain drain"The idea is the top performers of your country, and similar ones, leave. This drains the people you need for a functional society and leaves the less desirable ones behind. Look up brain drain immigration if your curious. Its a problem people dont like to think about
>>527978287AI told me it's 19
>>527980365That wont give you the right answer
>46 = older + younger>Younger = 10 + (older/3)>What is younger?3Younger = 30 + olderOlder = 3younger - 3046 = 3younger - 30 + younger76 = 4younger19 = younger
>>527982056Bullshit. AI maths worse that Equatorial Guinea.
>>527979364no, not if the solution is easily verifiable. who cares how you came about the answer? you can subtract 10 from 19, then multiply by 3 and see woah, it's 30! then we add and see woah, it's 49! steps not needed.
>>527982056:(
>>52797828710 more... what?
>>527978287X+y=46Y= x/3 + 104x/3=36X=27Y=1919
>>527982247Why did they skip the entire continent of Africa??https://www.smartick.com/data/math-education-around-the-world/
>>527978686>wait wtf how is the younger brother 10 years older, trick questionHe is 10 years older than a 1/3 (3rd) of the age of the older brother, not that he is 10 years older than the older brother.
NERDS!
I haven't done any math in 20 years, this is what I gotx + y = 46x + 10 = 1/3y3x + 30 = y3x = y + 303x + 3y = 138y + 30 + 3y = 1384y + 30 = 1384y = 10857 = 27 + 30y = 27x = 19
>>527978401Fpbp
>>527982496>picrelatedBrazilians are terrible at math and this pains me, public education here is terrible and even if anyone wanted to study math at school, they wouldn't be able to.
Give us other problem OP, I came late to the party
>>527978287younger brother is 19 (cute)Older brother is 27 (Ripe)Better question is. How old was the younger brother when the older brother kissed him?
>>527982496Why would you include africa in a study like this?
>>527982984Anon, not everyone had your childhood
>>527983112No, sadly my brother never tried. I think? too young to remember.
>>52797828746 = a+b a = b/3 + 10=>46 = b/3 + 10 + b[-10 = -10]36 = b/3 + b36=4b/3[*3 = *3]108=4b[/4 = /4]27=b46 = a + 27a=19
>>527978287Obviously it's 19. This is more like a 5th or 6th grade problem honestly. In what universe is this 7th grade? Heck, in what universe do 7th graders struggle with this problem??
>>527983444>>527982750>>527982346>>527981718>>527981064>>527981060Bunch of nerds showing their work. This isnt an exam
>>527978502Nice
>>5279782874 of something = 6 in the units10 20 30 40 +10 50 <- to big (instant math to get a feel for where the number sits)9 18 27 36 <- we found our 6... +10 = 46 we found our answer27+19we know its 1/3 + 3/3 + 10 so we know we need 4 of a number to make a 6 unit (thats only a 4 or a 9)its a 10 second question
>>527983893Out of curiosity, are you under 25?
>>527984028no im like over 40just pointing out its basic mental math, take away 10 div by 4why everybody posting algebra for mental maths is silly.
>>527983893That's a fascinatingly strange way to do mental math anon, where did you learn it?
Not only I'm a smarter than a teacher, I'm smarter than all you retards put together~188 IQ
>>527984380>Not only I'm a smarter than a teacher, I'm smarter than all you retards put together>~188 IQProve that for all smooth initial conditions in 3D, solutions exist globally and remain smooth, here
>>527978871Same here. 30, 28, then 27. No paper req’d.
>>527984257by like doing math. I was there for the birth of the internet but also before the internet. life was boring. there were puzzle books if u want to do math fast you find shortcuts. all mental math has shortcuts.like 421 * 310in ur head u just add a zero 4210 and another zero 42100 triple it4 8 122 4 61 2 3126300and add the first increased number (4210) once130510the more u do numbers in ur head the more shortcuts you work out because u don't want to waste time and writing stuff down is a ball ach.
>>527984580Why would I care to prove anything to any of you? You will either believe it or not. Either way, I'll remain the same
>>527984580At the point p?
>>527978287>This is political
>>527984716hes just wants you to earn him a million dollers
>>527978287>Picrelated is a 7th grade problem, none of them could solve it.Took me about 2 minutes, not including the time to find a pencil and paper. Went through the steps without many missteps, but I lost track of which variable was which brother or I'd been quicker. Haven't done anything like this since middle school though. Ugh.
>>527984257that is Common Core mathThat is why you see parents posting their kid's homework assignment with the 'correct' answer marked wrong. Those assignments are teaching very basic math with this type of thinking because the mental math processes make more advanced math easier. That is the idea anyway. White kids are a minority in most of the country, so it doesn't really matter what style of math you teach. The children of the imported scab labor are retards just like their parents. I'm not sure what style they teach in UK, but this could be reflective of a dipshit zoomer posting on a VPN.
>>527984889Ig I could help but idk why I would
>>527984946>That is why you see parents posting their kid's homework assignment with the 'correct' answer marked wrong.Forgot to finish..But that is why they post the assignments online. They don't understand that the lesson is based on learning the method and utilizing it rather than just arriving at the right answer.
>>527982050I remember seeing a post somewhere from a guy from Nigeria, I think, complaining that the country had no neurologists, not because no Nigerian was never qualified for it, but because they all moved to Europe. I always felt there was something wrong with just willfully accepting poor countries educated and elite the way we do because it stops those countries from achieving anything on their own.
>>527985031I think it might be a mellenium prize problem or something, because I think it's impossible to prove in the general case.
>>527984716>Why would I care to prove anything to any of you? You will either believe it or not. Either way, I'll remain the sameOk, I don't believe it.>>527984750>At the point p?It's the "Navier–Stokes Existence and Smoothness" problem, if you can solve it, you can get a Nobel and 1M dollars.
>>527978287O + Y = 46Y - 10 = 1/3 O3Y - 30 = O4Y - 30 = 46Y = 76/4Y = 19Younger is 19, Older is 27.
>>527985204Huh. The more you know. This would require days of puzzling it out and I just cbf. I'm going to try tho
>>527978287is it 22?
>>527985217K
>>527984580P and nu equal zero and from this u is for example cos(x-t), which is smooth everywhere, like your brain.>>527984716
>>527985217That makes sense.....will it get me a gf?I got about 70 years of life left
>>527978287Are you smarter than all the other bait thread faggots?
>>527984946uk is kinda good now. It was only good for the bright people when i was younger shit for average + and shit for the bright ++But I got kids now and they are taught procedural thought and programming from a early age. my kids are like home schooled but my friends kids are literally not retarded. I asked my mates 8 year old all the square and cube numbers up to 5 digit and he dint disappoint. I started throwing a bunch of random mental math at him and he was quite good and told me he was in the upper half of his class but nothing special. Pity they also teach em all the other crap or Id send mine to school.they get taught programming early with i think Microsoft cheap knock of scratch. that kinda variablistic thought process is great for kids
>>527985418Crying on 4chan is so unbecoming. You should be embarrassed
X/3 + 10 + X = 46X/3 + X = 46 -10X/3 + X = 36X/3 = 36 - XX = 3(36 - X)X = 108 - 3XX + 3X = 1084X = 108X = 108/4 = 27Check:27/3 +10 + 27 = ?9 + 10 + 27 = ?19 + 27 = 46One brother is 27 and the other is 19.
>>52797828727 and 19, lol did it in my head in 10 seconds. if you're dealing with thirds of anything it has to be a multiple of 3 since grade school so is eazy from there.
>>527985437>will it get me a gf?Girls love mathematicians, don't they? Just kidding, but they surely love a millionaire.
>>527985278Oh following up though, in Leafland, 2-variable algebra like this is solved through either substitution or elimination and would be a high school (likely grade 10 but maybe 9) topic in my school board.In middle school we didn't get further than linear equations of the form y = mx+b.Of course, in the current day, grade 7 students haven't internalized their fucking multiplication tables and trying to get them to understand how to rearrange algebraic equations (X = 12/3 can be rearranged to 12 = X * 3 or 3 = 12/X).
>>527981060A/3+A is 4A/3. You can’t take multiply both sides by 3 without a common denominator.
>>527978287Post nudes of your wife
>>527985367that's what i came to too within a few seconds.
>>527979162Shut the fuck up ugly nigger. Retards like you are hired by Boeing and why their planes are exploding. Math is white.
>>527985850>>527985367but it's wrong.the correct answer is the older brother is 42, the younger brother 4. the younger brother was 10 years older than his older brother when he was a third of his age.10 - 1 = 8, 8+4 is six.six times four is twelve.that means his brother was born the year before, technically.
>>527978287oh and also... the kids in my local area are er lets say 98.7% pale based on parental demo. I am guessing 80-90% would have solved that it at that age... so it may be a where you live problem
>>527985530Touche, unbecoming is unbürgerlich in German...
>>527986125>Un-burger-like:)Awww the germans do like us. UwU
>>527979364No you don't, I went through grad school.Low IQ is being inefficient, high IQ is using the least amount of effort to get the right answer.No one gives a shit about show your work, they care can you do the fucking job you goofy dunce.>>527979535mine was simpler though.since it required no actual higher math at all.the answer was 9, it didn't even take a single second to figure it out.meanwhile you have to write an equation out to solve what should have been inherent to you.>>527979565and this is why you're being replaced by jeets hein, you've become retarded and fat.
>>527978287>my wife has a jobYou hilarious cuck. Another man is ordering your whore wife around at work, meaning that he's usurping your role as the leader of "your" wife.Subconsciously she doesn't have any reasons to reject the sexual advances of the man who controls her at work. She's been sucking his cock and rimming his asshole for years. Get a paternity test.
27 and 19took exactly 1 second
>>527986252they really should make different flags for each state man. I'm sure theres normal america and then there is cuck america and I'm like 90% sure you live in cuck america. It would help the rest of the world automatically filter out people from wherever you are from.
>>52797828746=2(1/3x+10)23=1/3x+1069=x+3039=x46=39-y7=yThe brothers are 39 and 72/3x=10x=1546=15+
>>527986390Ignore the last 3 rows, am phone posting had made some notes i forgot to delete
>>527986379No, my wife doesn't have a job, nor does any foid in my family. I can tell yours does. Enjoy knowing that another man uses her holes.
>>527979038math retard here. why did u divide by 4
I got 19 but I just guessed what a third of the older brother's as 6, realised that was way off so tried 9 and it worked. I didn't come to the answer in a logical manner.
>>527978287Nice mathbait brother.x + y = 46y = 10 + x/3we're solving for y, the younger brother.x + 2y = 56 + x/33x + 6y = 168 + x6y = 168 - 2x3y = 84 - xI feel like this is unsolvable. you can divide both sides by 3 and it's just linear equation, right? The only thing that would bound it is whether you want an even age.
>>527978589But entirely wrong
>>527986390I can't tell if this is a joke or you're turkish.
>>527986502neither me or my wife have a job, we wage slaved for exactly how long we needed to stop working all together and that what back in our 30s... imagine being owned by another person. that's disgusting. do you have any idea how easy it is to retire when you and your wife met at 16 and simply worked in a time houses didn't cost 300k each minimum lol. current gen is fucked bruv
>>527986675This thread made me lose hope in this place...
>>527978287Ages:>21 (7x3)>17 (10+7)>8 (46-21-17)
>>527978502>>527986629oh yes I see, once you get one of the variables in terms of the other you can just replace all of the former with the latter. so you get 3a-30=B and now you can replace all the instances of B with 3a - 30. That makes sense
>>527986683You and your wife are the same age? So you fuck an old lady? Nasty bro.
>>527986561because the younger is 1/3 of the age that is1/3but the older one is 3/3 of the agethats 4/3 neededso if you take of the 10, ur down to 36whats left needs to be divided into 4 equal partsdivide by 4.9 18 27 36then add the 10 back. that is the number we were looking for.one of those 9s is the 1/3 belonging to the younger3 of those 9s are the 3/3 belonging to the olderand the younger also has +10so younger is the 10 and the 9 older is the 3 9s or 2727 + 19 add to our number so we verified we are right.
>>527986827Ok, nvm, dyslexia sucks lol
>>527978287x + y = 46x = 1/3 y + 101/3 y + y = 364/3y = 36y = 27x = 19
>>527986925and you fuck nobody. I would rather be with somebody I met in school and am still together with 25 years later than some washed up girl who fucked half the city.when we were kids it was gross getting with somebody who had like even more than one other partner. one was a eww. I know the idea of pair bonding is lost on the current generation but that is because "certain people" cooked your brains.
>>527987239I wanted to be pair bonded with someone. ... but I guess I was born in the wrong generation.
>>527985160It's a type of colonialism actually. It has a name. Drain the lifeblood of a nation of it's youth, breed age, work age and it becomes a ghost nation. Cheaper than conquering and less controversial done under the guise of humanitarian. But it's actually quite diabolical.
>>527978287B+y = 46y = 10 + B/3Two variables, two equations. The rest is just grunt work.
>>527987320they want to too. depending on your age id go find ur self a nice 16-18 yo if your not to old and that's legal in ur part of the states and just you are going to get old and depending on how old you are soon you will lose the chance. (or u know be the 35 year old dood creeping on the 18yo girls)ur best bet is go find some bumbfuck town that nobodys heard off and grab a bunch of money and just be out there for "business" go to all the local shops find a nice local girl working in a local job who fucking hates living there but at the same time isn't a broken internet whore. It wont be easy but mate... if my wife died now (and i didn't have to raise my fucking kids lol) id top my self without a question. my life is golden i love everything about it. my gal is the only reason this shitty world (even tho we have a good life) is worth living. its not hard to go find a woman and say you your mind now lets go.nobody is going to give you permission ur just in a prison you made for your self because u believed the shit the world tells u
Yeah, that took like 30 seconds. Teachers are the biggest midwits there are and they should beg a lot more for our tax money
>>527978686So tell me, have you been offended by Trump's last video?
>>527978871The smartest leaf.
>>527978287Got anymore of these problems?
desu it is a nice algebra problem that makes you utilize several tools
>>527978287Age of older brother/3 = Age of younger brother27/3 = 9 = Age of younger brother because9+10 = 19 -> 19+27 = 46>show your work!!!No, solve everything with brute force like a man
>>527981060>B=(A/3)+10That should be B=1/3A+10 |*33B=A+303B-30=A>46-A=(A/3)+10Is then46=A+B46=B+3B+1036=B+3B=4B |:49=BA=46-B=46-9A=37
>sum of agesa + b = 46>a is 10 more than b/3>a = 10 + b/310 + b/3 + b = 46>basic algebra 4b/3 = 36>clear fractions scaling by 3/4b = 108/4b = 27>Find aa = 10 + 27/327 + 19 = 46
>>527988214I ignored showing a few +10s but to clarify the answer is 19>but your work!!!Don't care
>>527979304Guess i am a genius
>>527987708>NipperSir the g is not pAnswer disqualified
this thread has taught me that europeans process math way more intuitively and quickly than north americans
>>52797828719
>>527988281>>527981060You could also say46=A+1/3A+10 36=A+1/3A |*3108=3A+A=4A |:427=AB=46-27=19Seems i need to apologize, there are 20 possible answers depending for which you solve. Younger can be either 19 or 9 andolder is either 27 or 37
>>527989236*2 possible answers
>>527989236Im too fucking tired. 7 or 19 is the younger and 39 or 27 is the older one
>>527989167Almost as pendantic as my irl teachers were
>>527989236Germany sir,The younger is 10 + 1/3 the older so 9 is an impossible answer for the younger as 10 + (anything positive) can't be 9.
This thread was moved to >>>/bant/23980981
