IGCSE MATHS Doubts

[PeaceMaker]

Oh boy, i don't even want to discuss it. I'll just forget it and look forward to paper 4. But now, ima focus on I.T then its chem & math.

[Amberr]

heyy.. im new to this thing.. but i just did the igcse maths paper 2 extended yesterday.. it was alrytt..
but i wanted to ask.. since its gonna be 24 hours in 20 minss..
you know the question which we had to rearrange the P=(x+3)/x.. to make x the formula.. what did you all get???
i got it wrong i think.. i got like Px-3   

[astarmathsandphysics]

P=(x+3)/x
xP=x+3
xP-x=3
x(P-1)=3
x=3/(P-1)

[Dibss]

P=(x+3)/x
xP=x+3
xP-x=3
x(P-1)=3
x=3/(P-1)

I GOT THE SAME ANSWER
so does this mean we're allowed to start discussing now?

[mohit1234]

I GOT THE SAME ANSWER
so does this mean we're allowed to start discussing now?

even i got tht answer!! YAAAY!!
yes i think we are allowed

[Amberr]

ohh and alsoo.. you know the maximum speed for the boris guy.. did u ppl get 16.25?
and for the white paint thing.. did you guys get 88.0 (3.s.f)?
ooohh.. and for the sinx-cosx= 0.5 .. did u get 66??? i spent 10 mins on the calculator .. working out everysinle value.. nothing gave it exact... so i just put 66???

im so confused.. cuz im meant to do the igcse next year but my teachers like .. oh u have tha capability to do it this year and get at least an A.. soo i did it yesterday.. and i think ive lost like 4 marks or 3 marks...
well anyways... i hope we get A*'s inshallah

[Amberr]

even i got tht answer!! YAAAY!!
yes i think we are allowed

thats what i lost 3 marks on.. omg im so stupiddddd... why did i get such an easy question wrong?

[mohit1234]

ohh and alsoo.. you know the maximum speed for the boris guy.. did u ppl get 16.25?
and for the white paint thing.. did you guys get 88.0 (3.s.f)?
ooohh.. and for the sinx-cosx= 0.5 .. did u get 66??? i spent 10 mins on the calculator .. working out everysinle value.. nothing gave it exact... so i just put 66???

im so confused.. cuz im meant to do the igcse next year but my teachers like .. oh u have tha capability to do it this year and get at least an A.. soo i did it yesterday.. and i think ive lost like 4 marks or 3 marks...
well anyways... i hope we get A*'s inshallah

ya i got 16.25
and the sinx and cosx thing was 66
but fr the white paint thing i got 12pi which is something like 37.3
do u remember the white paint question(could u plz tell me)

[astarmathsandphysics]

I havent been following this. Was catching up with a backlog of work. When was the exam?

[mohit1234]

I havent been following this. Was catching up with a backlog of work. When was the exam?

it was yesterday

[Amberr]

ya i got 16.25
and the sinx and cosx thing was 66
but fr the white paint thing i got 12pi which is something like 37.3
do u remember the white paint question(could u plz tell me)

it was like we hade to work out the length of the minor arcs.. times it by 4...
and then add it to the circumference of the small circle.. radius 8 cm.. soo yeahh i got like 88.0

[mohit1234]

it was like we hade to work out the length of the minor arcs.. times it by 4...
and then add it to the circumference of the small circle.. radius 8 cm.. soo yeahh i got like 88.0

oh no!
i only calculated the length of the arcs and multiplied by 4...hw many marks was the question?
hw much do u think i will get for tht question??

[Amberr]

okk guyss.. talk to u all l8r...
gotta go study for paper 4... which is  gonna kill me... OHHH

OHH and u know the inequalitys.. where did u put the R..? like on the left side ryt.. not in the middle ryt???

[saleemsamer]

it was like we hade to work out the length of the minor arcs.. times it by 4...
and then add it to the circumference of the small circle.. radius 8 cm.. soo yeahh i got like 88.0

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I got 88 too

[Amberr]

oh no!
i only calculated the length of the arcs and multiplied by 4...hw many marks was the question?
hw much do u think i will get for tht question??

i think it was 4 or 5 marks.. umm ull probably get like 3.. or sumthing..i have no idea.. :S