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Correct Solution would be:
x + y=13 ; y = 13 - x
400 x + 100 y = 2200
400 x + 100 (13 - x) = 2200 Answer: x = 3
What miko did: try to find the max number of apples in 2200 grams then just go down from their until the weight adds up to 2200g and the number of fruits adds up to 13. Thus, the Elimination process 😂
ah finally i can understand
Your words may make sense, but my sense of eliteness tell me not to listen!
Or without scary letters:
If you have 13 oranges, then the weight is 1300 g.
Replacing one orange (100g) with one apple (400g) increases the weight by 300g.
To go from 1300g to 2200g, we need to add 900g. So replacing 3 oranges with 3 apples (3×300=900) will get us there.
That means we have 3 apples (3×400g = 1200g) and 10 oranges (10×100g = 1000g) for 13 fruits weighting a total of 2200g.
Instead of doing the substitution, I just tested integer pairs of x and y into
400x + 100y = 2200.
Since the mass for x is so much higher than y it makes intuitive sense that x is a low value and y is a high value. I started with (2, 11), which results in 1900. Testing (3, 10) means adding 400 and removing 100 for a net increase of 300, resulting in 2200.
Not the proper way to do it. It works but knowing the substitution is better as it applies more broadly and doesn't require any intuition, just logic.
Man I added extra steps for myself by doing:
x + y = 15 ; x = 15 - y
400 x + 100 y - 200 = 2200
400 (15 - y) + 100 y = 2400 ; y = 12
x = 15 - 12 = 3
Still the same answer but took longer since I substituted for x instead of y
Miko's resolution is like coding, no matter the process, if it works it works.
Nah it passes all the test cases perfectly by coincidence giving you the illusion that it is working, but then when it is actually being used, you get all sorts of errors because it wasn't actually working as intended and the code is written by a student that you gave the test cases to and they just work on it to get it past the test cases.
@@codeotaku8857 it happens.
@@codeotaku8857 Yeah this. I'm surprised Miko got the right answer by this method too.
it's like bad coding, instead of solving the problem with math, you bruteforce it by trying all possible answers and seeing what fits.
all tests passed.
meanwhile in prod: user clicks one button and the app explodes
When a teacher thinks they're making an algebra equation, but instead makes a recursive elimination equation.
I did both but the elimination was faster than my algebra calculation
Never was a big math fan but tried to figure it out before Miko for fun. Used pretty much the same trial and error method. I don't think I'm allowed to laugh at these anymore...
Tbf, it's a flawed problem because I also did it way faster through elimination. It took me less than a minute, when for the proper mathematical answer it was about 2 minutes.
Oh man, at this rate, I might become "elite" too...
Miko, I'm afraid you have contracted stage 3 Goobaitis. It is terminal.
Elimination is probably faster since 13 and 22 are small integers, I’d do the same too. Just not on an exam since you’ve got to show work
You can use a similar approach and make it formal:
13 oranges= 1300g.
Replacing one orange with one apple: +300g.
So you can express that as a function f(x)=1300+300x, where f is the weight of 13 fruits and x is the number of apples.
1300+300x = 2200
300x = 900
x = 3
This leaves us with 13-3=10 oranges.
10 oranges (1000g) plus 3 apples (1200g) adds up to 2200g.
So you use the "let's just pick a starting point and guess from there" approach (with 13 oranges + 0 apples), but then put it into proper notation. And then you can solve it fairly easily without actually having to guess.
@@T33K3SS3LCH3N i don't i would've gotten points for that in my school. they obviously want you to solve it with a system of equations.
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Oh Miko, dear sweet Miko.
This is why Elite Maths should be mandatory in all school, internationally
... guys she figured it out faster than I did
She is Elite after all
blessed her sweet soul, but correct answer is correct answer, regardless how you got to it.
Miko getting the right answer but through the wrong process is why they had us show our work for math problems back in school, lmao
(I'm assuming that they still do that nowadays too, but it's been a very long time since I've been in high school or whenever the hell it was we were supposed to learn how to solve questions like this)
I taught private elementary students to do this lol but i think it's high school for public yeah, and yes I had "show your work" written in bold at the top of each exam. Just getting that good old math trauma in early, oh what joy that was
If the answer is right that mean that math solution is right.
Professional Eroge Engineer Sakura Miko uses perfectly valid numerical methods to solve a system of linear equations in the domain of integers.
Unfortunately, there's nothing funny in this clip, but at least we can watch an expert at work.
Miko being surprised she found the answer is hilarious, though.
Elite Miko with her Elite Way. Kusa
The vine boom killed me 💀
She did do head math, so it counts. Going like this is faster for smaller numbers when you're too lazy to write it out.
I know I should've used the math, but what can I say since I figured it out almost immediately using *her* methode while reading the question. XS
Where it says "How many apples did she bought?" it should be "buy" instead because past tense is already indicated by "did" (past tense of "do"). I hope you're okay with getting feedback.
I'm truly impressed. Sasuga Elite
Elite math explained.
Find minimal amounts of fruits that totals 2200g: 5🍎+ 2🍊; 7 fruits total
The mass of each apple equals 4 oranges, so 4🍊- 🍎= 0
Any number multiplied by 0 is 0, so n*(4🍊- 🍎) = 0; for any number n. However, the number of fruits increase by n*(4-1), or 3n
The targeted number of fruits is 13, so 13 - 7 = 6 fruits required; 3n = 6 -> n = 2
Combining with first equation 5🍎+ 2🍊+ n*(4🍊- 🍎) -> 5🍎+ 2🍊+ (8🍊- 2🍎) -> 3🍎+ 10🍊
I decided to solve it myself before watching her. I set up the equations, then thought "nah can't be bothered with this shit," took the weight it would be with 13 oranges then just converted the difference into apples. Then watched her do more or less the same thing. I can't even point and laugh here, bit sad really.
She needs to watch those Indian teacher's math videos!
Liberation extra when me air sun babalon be pacifying habitual ark abduct
this is truly one of the "chat embodies the streamer" moment of all time, because i use the same method😂
Not all maths have closed-form solutions, so I technically can't take any points from Miko.
eh? i was watching while having excel on and i did what miko did first.
i mean the weight distribution is pretty clear.
avg weight in the bag - what miko did
get the avg to fruit weight ratio, adjust to 1.
use the end ratio with total fruits.
i've checked this true for every combinations with notes round down or up corrections (as fruits is a whole number).
15 fruits, 2400gr
avg 160gr
orange ratio is 1.6, apple is 0.4
orange is 80% of fruits the bag (12), apple is 20% of fruits in the bag (3).
17 fruits, 2600gr will be 13,6 oranges and 3,4 apples, unless the store sells half eaten fruits its 14 oranges and 3 apples.
maybe miko would've get it if chat didnt tell her she was wrong (?)
Nah but this is actually smart wtf💀 I mean I didn't expect HER out of all people to use the elimination method to find the answer
Ackshually good. She fell for a random noob trap with the mindless long division but after that made no sense she actually read and understood it properly without dropping a beat.
I'm pretty sure most people would get stuck at the 15/13 bit and realizing you need 2 fruit numbers to be correct would stump them. Trial and error is faster here since the numbers are so simple so she did it flawlessly. But that comment is right; lesson probably expected system of equations so not full 20 points lol
Sasuga maou sama
I figured this out by hand.
2200g / 400g = 5.5 g
so, 2000g / 400g = 5g
we have 200g reamaining
so, 200g/ 100g = 2g
now, 5g-2g=no. of apples
total no.of apples = 3
ezpz orange squeezy