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  1. Rania1

    Expectations for Chemistry Paper 3?

    I hope its a low curve tho
  2. Rania1

    BIOLOGY P3 DONE!!!

    W Which variant did you do?
  3. Rania1

    BIOLOGY P3 DONE!!!

    I t I think they would totally accept anything below 0.35 so :)
  4. Rania1

    BIOLOGY P3 DONE!!!

    I wrote it was about 0.1 you?
  5. Rania1

    BIOLOGY P3 DONE!!!

    Id idk either, i wrote stuff about how ovule develpos to seed and ovary to fruit then its dispersed
  6. Rania1

    Paper 42 (13th May) - Full Solutions

    Wow are you serious? Thats amazing :)
  7. Rania1

    Paper 42 (13th May) - Full Solutions

    How much did you get for total?
  8. Rania1

    Mathematics: Post your doubts here!

    Oh sorry, this is b) i) similar ii) since they are both similar, the scale factor of length squared = scale factor of area . So, x = 49 x 20 / 100 = 9.8 iii) Area = 0.5 x base x height. You have the area and base, if you solve for height you will get 4. Sorry again
  9. Rania1

    Mathematics: Post your doubts here!

    B) i) cyclic ii) since tc and bo are parallel, alt. interior angles are equal so x = 40 . OA and OB are both radii so AOB is an isosceles triangle. Both base angles are equal and so 130 + 2y = 180 , y = 25 . Angle Z is supplementary to x + y becuase they are on a cyclic quadrilateral so, 180 -...
  10. Rania1

    Mathematics: Post your doubts here!

    Looks like you understand more than i do :)
  11. Rania1

    Mathematics: Post your doubts here!

    You have 4.75 as your first mean, and 40 students. To get any mean you multiply the frequency with the number of people and divide by TOTAL Frequency. So, 4.75*40 + 3n everything divided by the total frequency which is 40 + n . It will simplify to 190 + 3n / 40 + n
  12. Rania1

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Mathematics%20(0580)/0580_s11_qp_43.pdf I'm stuck in question 3) c) my answer is 26.5 , the marks scheme says 53.1
  13. Rania1

    Mathematics: Post your doubts here!

    I keep getting 196.41 , this is what i did : 160 x 225 + 330 x 190 + 150 x 180 and divided everything by 640. What did i do wrong?
  14. Rania1

    I'm an IGCSE Maths Teacher - Post your questions here.

    Oh nvm thats may june, im so confused today. I will just go away
  15. Rania1

    Mathematics: Post your doubts here!

    Question 1
  16. Rania1

    I'm an IGCSE Maths Teacher - Post your questions here.

    Q question four has no part D
  17. Rania1

    Mathematics: Post your doubts here!

    Is there a mistake in the mark scheme of october november 2012 43 question b) i) ? Please answer ASAP
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