How did Adam win in question 11 mean time question if he had 9.67 and others had higher times than him?
@MrTompkins7 ай бұрын
Because the winner of the race is the one with the fastest, ie smallest, time. 9.67 is the smallest in the list and therefore Adam must have won the race. This is a VERY COMMON mistake by students in tests! If you did the November 2023 papers for your mock, you might remember there was a box plot of running times and you were expected to find the fastest time. About a third of my top set maths class picked the right hand (highest) value as their answer! >.
@winkfish5 жыл бұрын
Thank you sir 😳 Nice to see you still reply......going to subscribe bcos of that!
@MrTompkins5 жыл бұрын
I try to respond to every comment - it can be a lot, but I think it's worth the effort! Thanks for the sub!
@vivekprajapati762 жыл бұрын
hello, I have a doubt, and doubt is on the question 7(b) it ask for a odd number and 12 is not an odd number but you have used 12.
@MrTompkins2 жыл бұрын
Hey Vivek - 12 is the number of times that 3 came up, and 3 is an odd number! Best of luck on your last paper!
@transitvandoors6 жыл бұрын
Another great lesson. Watched and liked.
@MrTompkins6 жыл бұрын
Thanks for supporting!
@dis93236 жыл бұрын
52:03 why is the multiplier 1.025 ?
@MrTompkins6 жыл бұрын
When doing any percentage increase (including compound interest), you start with 100% and then add your increase to it. Here the interest rate is 2.5%, so our original 100% + 2.5% = 102.5%, which written as a decimal gives the multiplier 1.025. Does that make sense?
@dis93236 жыл бұрын
ah yeah thank you!
@alexcaldicott88115 жыл бұрын
Just subbed. Great video
@MrTompkins5 жыл бұрын
Welcome along TheRealAlex 23! Its a great time to subscribe, as I'm planning to get the June 2018 paper series out very soon!
@alexcaldicott88115 жыл бұрын
I am only in year 9 but i love maths
@MrTompkins5 жыл бұрын
Hey - I love maths too!
@AlfredoL16 жыл бұрын
Great work watched liked full
@MrTompkins6 жыл бұрын
Thanks for the positive feedback Alfredo!
@wav3y_ta5655 жыл бұрын
Amazing vid helped a lot
@MrTompkins5 жыл бұрын
Thanks for the feedback! There are plenty more to go through, and its a great way to prepare for your exams. Try to go through them all!
@SanaKhan-wf4ec6 жыл бұрын
Keep up the great work!
@MrTompkins6 жыл бұрын
Thanks Sana! I'm super happy right now as I've just noticed I reached 1000 subscribers today! Yay!
@SanaKhan-wf4ec6 жыл бұрын
What if I make that 999? Only joking haha, your maths videos are the best on yt! Someone told me you were doing June 2017 papers, the specimen papers for paper 2 and 3 and even the November papers. (Nah, that's only my wishful thinking). Jokes aside, you're really helping all of us out and I hope more students discover this channel!
@MrTompkins6 жыл бұрын
Noooo! Dont make me go back to 3 digits! KZbin is a great example of an exponential function in action, and it feels like I've been bumping along the long flat part for quite a while. Reaching this milestone feels pretty awwsome :-)
@HangWithTheBangs6 жыл бұрын
thats awesome you enjoy math!
@MrTompkins6 жыл бұрын
Yup - ❤️ the maths!
@HangWithTheBangs6 жыл бұрын
:) Have a fun week!
@nehamohan55945 жыл бұрын
hi sir sometimes I get confused with idientities because I don't know which terms to put together like 2x^2 = a^2 meaning 2 = a but do we just read the coeffient and compare because the value of x is not compared so I'm confused and then the minus sign disappeared from 20
@MrTompkins5 жыл бұрын
Neha Mohan we compare like with like. If they are identical, each term must match up exactly, so the 2x^2 term must match exactly with the ax^2 term, which means a=2. You can do the same thing with the term in x and the constant.
@nehamohan55946 жыл бұрын
hi Mr Tompkins is the identity for question 26) -b squared because of the minus in the bracket also thankyou for another great video
@MrTompkins6 жыл бұрын
Hey Neha! When multiplying out a - b)(a - b) , the b squared term is positive. It comes from multiplying -b x -b, and a negative times a negative is positive. Good luck in your studies 😀
@CucaPatada6 жыл бұрын
Great lesson!
@MrTompkins6 жыл бұрын
Thanks for that!
@admmm_6 жыл бұрын
Thanks a lot, i got 89% correct
@MrTompkins6 жыл бұрын
That should be a comfortable grade 9! I hope you perform that well in June! Make sure you do all the past papers so that you dont get any nasty surprises. ;-)
@admmm_6 жыл бұрын
Oh really wow!! Yep watched tonnes of your videos, thank you for the content!
6 жыл бұрын
like 4 Saludos Mr Tompkins Ed Tech
@MrTompkins6 жыл бұрын
Thanks Raul!
@jfishy2472 жыл бұрын
thankyou
@MrTompkins2 жыл бұрын
You're welcome!
@Vik-rs5sz6 жыл бұрын
10 c would be negative 6 and 2?
@MrTompkins6 жыл бұрын
The roots are where the curve cuts the x-axis., so -2 and 6.
@Vik-rs5sz6 жыл бұрын
Mr Tompkins EdTech ohhhh I see thank you very much and if you have any available time are you able to explain vaguely how to do q26 I spent much time attempting to understand it however I haven’t studied it yet but I’m very sure i could easily understand it with little guidance
@MrTompkins6 жыл бұрын
Q26 - Function notation is simply another way of writing equations linking y and x. So rather than writing y = 2x +3, you write f(x)=2x+3 instead. If I have a second equation, eg y = 6 - 3x, I can use another letter to represent that function, so g(x) = 6 - 3x. Some common things asked in exams are to find things like fg(x), which is a composite function. Basically, you take a value of x, and input it into the first function, take the output and feed it into the second function. Think about chaining 2 function machines together and you get the idea. To find fg(x) you need to find the algebraic equation that takes you all the way through. f-1(x) is the inverse function. Again, think about function machines and working backwards from the output back to the input by using inverse operations.
@Vik-rs5sz6 жыл бұрын
Mr Tompkins EdTech thanks you so much this gave me a miles better understanding very appreciated thanks for giving your time
@ImranKhan-kz9qo5 жыл бұрын
for question 25 the upper bound for 160 is 165 wouldn’t that round to 170 though ?
@MrTompkins5 жыл бұрын
Technically yes, but regardless it is still the boundary. When dealing with continuous quantities such as distance, speed or time, then 164.9999999999 is pretty much the same number as 165, so you might as well use 165 in your calculations.
@ImranKhan-kz9qo5 жыл бұрын
Mr Tompkins EdTech thanks
@felixserra62426 жыл бұрын
thx ur saving me XD
@MrTompkins6 жыл бұрын
Glad to have helped! I've just started on a new series of topic tests you might also like: kzbin.info/aero/PLxp90x5c0ttZJlDrO4TLdtyp-uwzp7xHw
@felixserra62426 жыл бұрын
@@MrTompkins Thank you !
@mcdonaldshappymeal89445 жыл бұрын
Mr Tompkins is a qualified teacher with 20+ years classroom experience. BSc (Hons) Mathematics, Post Graduate Certificate in Education, Certified Apple Teacher, Microsoft Certified Educator, and Microsoft Innovative Educator Expert. MrTompkinsEdTech is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program