in Corbett maths the answer for children is 15 can I have it as 10 as I multiplied all by 2

[ornate whale]

here u make the men the same

[prime slate]

I got 6 for men

[ornate whale]

4:3 2:5

yep

[prime slate]

Cause I multiplied it by 2

[ornate whale]

8:6:15

[prime slate]

What do u think for children

[ornate whale]

children is 15

as a percentage it would be 15/total x 100

[prime slate]

How

that’s what I’m so confused on about

[ornate whale]

ok do u understand how children is 15?

[prime slate]

No

[ornate whale]

so the ratios are 4:3 2:5

u want to make 3 and 2 the same

[prime slate]

Yeha

Multiply by 2

[ornate whale]

so oh the lhs u multiply by 2 to get 8:6 (as 3x2 = 6 and 4x2 = 6)

on the rhs u do x3

[prime slate]

Ye

Why tho

Why3

[ornate whale]

because for men u have 2

and ur trying to make it 6

6 / 2 = 3

so theres a multiplier of 3

[prime slate]

Wiat didn’t we multiply the men by 2 tho

[ornate whale]

on the lhs we multiplied by two because in the ratio for men it says 3

6/3 = a multipler of 2

[prime slate]

Ok

but why children

[ornate whale]

cuz its asking for u the children

the percentage of children

so u cant find the percentage without knowing how many children there are

[prime slate]

Yeah I mean why do u multiply by 3

[ornate whale]

read from here

i already explained this

@prime slate do u understand?

[prime slate]

LOL SORRY, I watched like a quick YouTube vid n I get it now THANKS

[ornate whale]

it is really simple

[prime slate]

yeah now that I watched the video tbh I forgot how to do everyth8nh 🥲🥲

[ornate whale]

are u doing higher or foundation?

[prime slate]

Higher

[ornate whale]

i would recommend u mathsgenie

[prime slate]

No need to ask u, your probs doing further by chance

[prime slate]

I use that too, but I do 5 a day cause it refreshes my head so I don’t forget

I have a maths tutor but since it’s summer she’s not here 🥲 but she’ll be back

[ornate whale]

first learn the content then do the questions

[prime slate]

that’s what I always do apart from science I do questions then learn content 😭

cause In my mocks I learned content but didn’t do as much questions so I did rlly badly

[ornate whale]

learn content before

[ornate whale]

u probably didnt understand the content well enough

[prime slate]

that’s true like I was taking notes of everything it was all passive

[prime slate]

IDK like after my mocks I have PTSD n like idk n when I learned content after in end of topic exams I’d always achieve good

Like highest in my class

[ornate whale]

people make flash cards but i dont find them effective

they take to long to make n just take long to memorise

so i just make notes on the essential stuff and look over them

[prime slate]

that’s what I did N I FLOPPED 🥲

[prime slate]

I just use some from Knowunity tbh I made some but never looked back cause I cba that’s solely my fault

[sly mango]

Notes are useless

Watch a vid on the topic and do a bunch of qs on it

[ornate whale]

notes work for me

just advant and disadvantages

definitions etc

and then i make sure that i understand the content inside out

if flashcards work for u, then do them

[prime slate]

Can u show me how u make ur notes

also I’m stuck on this question 🥲 can u help me if u dm

[ornate whale]

using the spec

[ornate whale]

yep

[prime slate]

so u only use the spec to make notes, no vids or anythung also can u take a pic of ur notes if u dm

[ornate whale]

i use the spec and watch cognito + fsl

[ornate whale]

do u know similar shapes?

[prime slate]

ye I think I learnt it in year 9 but my teacher never explained it well

[ornate whale]

i think u should watch a video on it

are you going into y11?

[prime slate]

Wait is it the one with the scale factor

Yeah

[ornate whale]

yep

[prime slate]

Ohh ok yeah I know it

[ornate whale]

u know the surface area of A and B

[prime slate]

Is that the ratio for it

[ornate whale]

surface area = A : B
4 : 25

[prime slate]

Ye

[ornate whale]

bc its area its cm^2

[prime slate]

Ye

[ornate whale]

so its asking for the length in cm

[prime slate]

Ye

[ornate whale]

cm^2 to cm

how do u do that?

[prime slate]

square root

right?

[ornate whale]

in other words , how do u go from surface area scale factor to length scale factor

[ornate whale]

yes

A:B
4:25 surface area

square root both u get 2:5

[prime slate]

2:5

Ye

[ornate whale]

so the length scale factor is 2:5

box A = ? cm
box B = 10cm

u could just do simple ratio like this

[prime slate]

10/5

[ornate whale]

2 : 5
? : 10

yep

10/5 = 2

so its a scale factor of 2

so 2x2 = 4

so box A is 4cm

[prime slate]

YAY

I SWEAR ONE MORE QUESTION

IS THAT OK

[ornate whale]

its fine

go on

[prime slate]

SORRY 🥲

[ornate whale]

no need

[prime slate]

I HAVENT done trig rules or nothin like that but I know it’s one of them but I just need to know which one so I can watch a YouTube vid on it

@ornate whale

[ornate whale]

which question?

[prime slate]

2

[ornate whale]

the second one?

alright

[prime slate]

YEH

[ornate whale]

the formula to work out the area of a triangle with 2 known lengths and an angle in between them is

$1/2absinC$

[final totem]

itgoesbrazy

[ornate whale]

eh thats weird

[prime slate]

WHAT IS IR CALLED

IT

[ornate whale]

thats the formula

[prime slate]

C is angle right

[ornate whale]

a and b are the lengths
sin(C) is sin(angle)

yep

so all u need to do is

[prime slate]

Does it get any harder than that

I mean it’s not hard but yk

[ornate whale]

1/2 x 19 x 15 x sin(140)

[ornate whale]

no

[prime slate]

YAY

[ornate whale]

not that im aware of

[prime slate]

what is it called

Like the rule

[ornate whale]

area of a triangle 1/2 ab sinc

i dont think this is a rule

its just a formula

[prime slate]

And how would I know which one to apply

Oh I thought it had names

well this one

[ornate whale]

what do u mean by that

[prime slate]

Like how would I know wether to use that formula or not

[ornate whale]

if u have an angle, u just use 1/2 ab sinC

if theres no angle, u use 1/2 x base x height

[prime slate]

What if I don’t

OHHHH

THAT MAKES MORE SNESS

OMG THANK U SM

🙏🙏🙏🙏

HAVE A BLESSED REST OF UR DAY