Grade 8/9 Ratio Problems 

tmrw is our exam lol

Me too

Same

Hello 333 you have your mocks soon ?

REAL

I have been surprised since I started this channel at how positive it has been!

Maths Explained Math haters are not going to search up math on youtube are they?

@@ubaidshah1910 aha literally

could be forced :?

You are correct

Ohh yeah thanks i prefer tjis way a lot more

tysm

i did the same thing because algebra doesn’t work for me haha

howd you balance out it i dont get it@@imnotlelo

Nice 👍 you are right, I didn’t use the simplest methods

Should be 4:10:21:7. Also, in the video, the poster did 3/4 x 2x incorrectly --> should be 3/2 x

It actually kind of hurts, your shamed when you don’t know how to get it quick. It makes me doubt myself that all the other students get it quick.🙁

I feel like I messed up in Paper 2 in my graphs; in the quadratic graph, my lines were a bit wobbly which might have affected my solutions for part c. Also the question circle graph, I may have somehow messed it up by not reading the values correctly from the graph. I definitely messed up the surface area question, I forgot to add the other two sides of the 1/4 sphere haha, rip. I probably lost 3 marks there. I hope don't get below 80% in this paper, or I'll probably not get a 9. I need to prepare well for paper 3.

Siam Sama how did you do

lol same

Ugh Fortnite kid

He made that more long-winded than it needed to be

Wdym first one is half the second?

Nice, thank you for sharing. I tend to take an algebraic approach to these and it is not always the best way.

Thanks. I knew there was a shorter method!

Bob John He's not allowed to, edexcel will remove it

@@ipodzonly123 how? I see loads of vids online kn it amd hes posting it after the exam anyways?

U97gaming ikr i wanted a 9 but im getting an 8 paper 3 should turn it around

9Firmino so it couldnt decrease slightly

👍 thanks

Yes you don’t actually need the areas. Feel free to share you method, others will want to see it

his mind>>

It is complex because it combines all of the simple ones. Only people who think logically can do these questions and I suck at these but the more you practice the more you’ll get it

It’s ok 😄

I deserve a grade 0 😭

I don't know about anyone else but I use a drawing tablet like this one: www.wacom.com You can get them cheap second hand (about $20)

Try to think about what “2/3 as many female as male members” means. That means for every 3 male members, there are 2 female members. Or to put it another way, if there were 9 male members, there would be 6 female members. So the ratio is 2:3.

How was ur maths competition?

I believe all the simplifying is correct.

I got 0.4

i got 0.4 mate

voidz It's 0.43

Nikolia Da Vinci i got 0.43 but represented it in an error interval😞

Manor Gaming still 4 marks. Don’t worry.

you forgot to also add the area of circles in the shape because you just calculated the curved surface area. I did the same, probs still got 3 marks

Ammar Ourtashi yh i got that

ali xone Thanks, was wondering what I did wrong

i got that too if i remember correctly

Most likely to come in most of exam boards

It’s Ashton if you’re talking about the second question it’s because your multiplying out the 2s to get rid of them

Ming Ree It was 10

I got 6 but probs got it wrong by doing: (n+1)/2 = (23+1)/2 = 12 = median lq : =12/2 = 6

Yes that works. So what your saying is that one part of the ratio will still be the same (3 litres), so what you add on (x) can be found by making the proportion of blue paint before and after equal.

Oh awesome! Ratios are my major weak point, but by using algebra it makes it a bit easier for me, still sometimes I feel like I'm doing it wrong :/

I prefer to solve them algebraically too, however there is often a simpler method. Don't worry, if you use algebra, you can rarely go wrong, but just be aware it is not always the fastest way.

how I make videos: bit.ly/2QA2WUo (I know it is not a video but I hope still shows clearly how I do it)

@@mathonify Many thanks for your quick reply. I will definitely explore that. keep up your good work it is very helpful.

Ammar Ourtashi I thought the same Ammar.

These were sent in by subscribers. Not sure where they are originally from sorry

Yes. I'm guessing I didn't write that 😩

yes and 6/4 simplifies to 3/2, I correct myself at 6:50

Ah ok thanks

i got that but it was supposed to be 3:5 i dont know how but i must have mistypes on my calculator, im gutted because i got the 1: 1.6 reocurring part right :(

So your on about 140 marks. I would say 60 to be safe

Well done btw!

Great! I think 60/80 is very doable. Thanks :)

wow how do you revise

I revised by doing every past paper I could. If you do that, you end up institutionally knowing how to answer each type of question before you even read it. It is a bit late now if you are taking the exams this year but if you do past papers before the last paper your grade WILL go up a lot. Good luck!

king Joe 180

Mathsexplained2@gmail.com

You don’t really need much working out. I did it that way because a few students were struggling to understand why the second ratio was divided by 2.

Same like wtf ??? 🤔😩

@@trishna9648 im a bit late but he was multiplying everything by 7.

I corrected myself about 30 seconds later in the video

the grade 8/9 refers to the level of difficulty. Grade 9 is the highest grade possible on GCSE exams

Oh sorry fo miss understanding

@@dariocaputo7158 ikr it’s so confusing