Inverse Proportion in Context | Rate of Output | GCSE Maths Tutor
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- เผยแพร่เมื่อ 19 ก.ย. 2024
- A video revising the techniques and strategies for solving inverse proportion problems. (Higher & Foundation).
This video is part of the Ratio & Proportion module in GCSE maths, see my other videos below to continue with the series.
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Revision videos:
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More videos in the series:
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Inverse Proportion in Context - • Inverse Proportion in ...
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Similar Shapes with Area and Volume (Higher Only) - • Similar Shapes - Area ...
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I am doing GCSE maths. As a foreigner, it is quite a challenge to get a pace when English is not your first language. However, I like the way you explain things. Concise and straight to the point.
what did u get
I don't know why, but i was always stumped by these questions in maths papers, i could never get my head around them and i never understood them because my teacher never explained it in a way i understood- but somehow in one 13 minute video, you have managed to explain it to me !! you truly are working miracles here! thankyou very much.
Well this is just amazing! I’m so glad to hear that the channel has worked so well for you, it’s amazing how it clicks when you find a method that works for you, keep up the great work! Thank you so much for the kind words 😁🙏🏼
Why doesn't this channel have a million subscribers?
Thank you so much!
D O L L Y A Let’s hope it gets there! Thank you!!!
Alie these videos are really good.Thanks
SVlogS Thank you! 😁 great to hear!
The GCSE Maths Tutor do u mind doing a video on money solving problems please? And shape problems like “solve the area of this large triangle I tend to struggle
Thank u i did paper 3 and got two marks off full marks
Higher or foundation?
for the guys confused at the questions after 6:50, my own maths teach at school doesn't even understand it, just memorise the steps and you're good, its a very common paper 1 question, it'll almost certainly come up
Speak for yourself, if you want to just get your grade aren't doing any more maths in Alevel fine. But if you wish to study maths further you need to understand the underlying logic & reasoning behind the explanations.
its ironic because i do a level maths now and not once did we talk about proportionality or inverse proportionality so its a win 🎉
@@erenyeager6668how’s it
on the 8 machines 9 days question, what do you mean by on the 1st day it takes 3 days of work?
The days of work are equivalent to the amount of machines used :)
@@swldnsstory9843 yh but it clearly aint the case when it took 8 machines 9 days .....
@@anyonymous9145 I mean... it does
icl its really confusing but in maths sometimes its just the way it is dont overcomplicate it
@@saudiaair i couldn't properly understand the reasons behind the steps so i just memorized how to do them
This channel literally needs 100000000000000000000 subscribers
This channel is 👍
Thank you so much, great vid. Saved me as I have a paper 3 mock tommorow. 👍👍👍
Ahmed Mustafa Great to hear! 😁 good luck!!
@@TheGCSEMathsTutor Thank you so much, I subscribed and liked and your videos help me a lot.
@@ahmD-ce8cr what you get
@@user-yf6ns7ji4f I didn't do the actual exams because it was cancelled but I got an A for maths
@@ahmD-ce8cr was your mock hard
Can anyone help me understand, in the second half wordier questions I understand it all up until the final step of adding 'the initial Day 1/2/3) part? Have we not already done that by tallying up the number of days/machines working that day and subtracting it from the days/hours of one person? I can't get my head round it? Feels like the step is being repeated twice
This was very helpful, thank you😊.
Sonia Galiza Great to hear!! 😁🙏🏼
HOW IS 3 MACHINES BEING USED IS 3 DAYS OF WORK WOULDNT I DO 72/3 TO GIVE ME 24 DAYS OF WORK
literally what i thoght
For the 8 machines 9 days question what do you mean by 1 day= 3 days of work?
In the first day 3 machines are used, so in terms of 1 machine running for 1 day and doing 1 days work, if 3 are running for that first day then it would equate to 3 days worth of work if only 1 machine was running 😁🙏🏼🙏🏼
@@TheGCSEMathsTutor ohhh thank you so much! Life saver!
@@TheGCSEMathsTutor This is the only thing in all the videos I have watched that baffles me.
@@BRECKDOG yh same this shit confuses me more than grade 9 stuff lol
I’m in year 9 and I’m gonna do all topics it about 50 topics in one of your vids so 1 each day about a few hours a day then after 50 topics I will make myself a test on all questions and it’ll be out of 100 and I will do that every 2 days so 1 day to make the test ten next to do it for about 2 Months and I can be very smart
good luck lmao
Did u do it
Did it work?
Let's go James
i kinda understand now but what do you mean initial days and where did it come from?
113k subscriptions and growing woooowww!!
Thank you 😁🙏🏼
Thanks a lot sir,these are exactly the type of questions that come in the exam.😊😊
Percy Jackson My pleasure!! 😁🙏🏼
Wow!!gcse maths tutor -u responded to my comment 2 minutes after!!
Percy Jackson I try my best! 😁🙏🏼
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@@littlechineseladyv2517 lol
sir do you organise the playlist in what you should learn first?
I dont understand the WHY for the last few qs
same i know so damn confusing
@@Glowdits i hate this topic so much omds i always get it wrong
@@_angeell yeh flying angel
I like the laid back modern R&B and jazzy music. You really have a wonderful format with nice explanations followed by 'you have a go' examples. This was a word salad, but broken down it really just involved basic arithmetic: 1st bit multiplying for one Worker or machine; second, adding days; then subtract the result from the multiplication number in 1st bit; then divide remaining days into that; and finally adding the number of days (in second bit) to the result of the final bit. Voila! Interestingly, the Persian founder of Algebra never used much numerals in his explanations but words. For maths is really just a language, but one with its own symbols and signs.
Great explanation! Very helpful.
this made it so easy ur so smart
So glad to hear it helped! 😁🙏🏼
@@TheGCSEMathsTutor Hello sir, when should I use inverse proportion as I use ratio instead for example in the first question I do 10:4 8:x and then cross multiply.
8:23 the second day= 6 machines not 6 days, does this affect the answer?
1st day does 3 days of work as there are 3 machines
2nd day does 6 days of work as there are 6 machines
How do you know whether it is inverse or direct context?
with inverse, the question would most likely ask you to work out "how long would x take in y time" whereas with direct it's likely related to money/weight. Also for inverse, as one variable increases, the other decreases. In contrast, with direct proportion, as one increases the other also increases (and vice versa)
i love this video and i understand it a bit now but i am quite stumped on the question after 6:50. can anyone help pls??!
so the first step is always to times the top two numbers which are 8 and 9, so times them together and u will get 72, u pretty much got 1 mark for that so thats good, then after, it says on the first day, 3 machines are used, so u do 1 day = 3 machines
2 day = 6 machines
it only goes up to 2 days, so u add both of them which gives u 9 machines, thats 3 marks uve got so its alr if u dont understand the next bit, so after what u do is, you take that number that u added which is 9 and then you do 72 subtract 9 and ye
@@ByfronBypassedScripts thx for helping me and writing a whole flipping paragraph..
Bless u🤩👍🤓😅😀😁
Thanx a lot maths tutor!
Thank you so much you are a god send ❤❤
I see this coming up this in next week's exams tbh
fr i predict its coming
Thanks!
Intro is elite icl
Sir i am a little confused, why did you half 12 to get 6 days ? at this time 8:21
He didn't half it as it was 6 machines only on the one day not two days (second day), if he said the next two days he would times it by two to make 12
1st day does 3 days of work as there are 3 machines
2nd day does 6 days of work as there are 6 machines
@@charlotteennis885 Thank you so much, I appreciate it : )
this question isnt even on paper 2 why is he putting links to this topic in the paper 2 topic
It is still confusing and not well explained, I am afraid.😢
Please explain by proper examples according to the age group.
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