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Maths GCSE *HELP*

I need help with this question. (attatched) I have no idea where to start because I can divide a line when the ratio is in the form AB:BC but I don't know how to form that ratio in that sequence myself? Help, please. Thanks!
(edited 3 years ago)
Original post by kittymityyy
I need help with this question. (attatched) I have no idea where to start because I can divide a line when the ratio is in the form AB:BC but I don't know how to form that ratio in that sequence myself? Help, please. Thanks!

Hi, without giving too much of the answer away, I'd say a good starting point is realising that the length BC is 100% of BC (pretty obvious :tongue:) and more importantly, that AB is 125% of BC (since it is 25% longer than BC). Comparing these percentages should lead you in the right direction. :smile:
Original post by Matrix123
Hi, without giving too much of the answer away, I'd say a good starting point is realising that the length BC is 100% of BC (pretty obvious :tongue:) and more importantly, that AB is 125% of BC (since it is 25% longer than BC). Comparing these percentages should lead you in the right direction. :smile:

ooh okay, i think i understand what you mean! :smile:
Original post by kittymityyy
ooh okay, i think i understand what you mean! :smile:

i think i might be wrong, but is the ratio 5:4?
Original post by kittymityyy
i think i might be wrong, but is the ratio 5:4?


5:1 say BC = 100%, AB = 25% longer therefore AB = 125% and BC = 100% = 125:25 = 5:1
Original post by northener_3006
5:1 say BC = 100%, AB = 25% longer therefore AB = 125% and BC = 100% = 125:25 = 5:1

Its in the form AB:BC
so like you said AB is 125%
and BC is 100%
so wouldn't it be .. 125:100 = 25 : 20 = 5 :4
Original post by kittymityyy
Its in the form AB:BC
so like you said AB is 125%
and BC is 100%
so wouldn't it be .. 125:100 = 25 : 20 = 5 :4


Sorry ye. You’re right. You can tell I’m half asleep 😂 . You’re right it’s 5:4
Original post by northener_3006
Sorry ye. You’re right. You can tell I’m half asleep 😂 . You’re right it’s 5:4

no thats okay! 😂
Original post by northener_3006
Sorry ye. You’re right. You can tell I’m half asleep 😂 . You’re right it’s 5:4

Would you mind if I asked you for help with another question similar to this one?

(I'm really bad at wrapping my head around ratios) :frown:
Original post by northener_3006
Sorry ye. You’re right. You can tell I’m half asleep 😂 . You’re right it’s 5:4

did you attempt the second question
Original post by kittymityyy
Would you mind if I asked you for help with another question similar to this one?

(I'm really bad at wrapping my head around ratios) :frown:

I've attatched the question if you say yes

Original post by kelvin gg
did you attempt the second question

yes I got that C is (7, -8)
Again, I don't know how to put this in the form AB:BC
Original post by kittymityyy
Again, I don't know how to put this in the form AB:BC

Any help would be appreciated, thank you!
Original post by kittymityyy
Again, I don't know how to put this in the form AB:BC

How would you think of starting it? That's where you're struggling the most I think so it'll be good for you to guess then get hints from there. Don't worry about getting it wrong, just post anything you understand from the question! :smile:

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