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  1. F

    mathematics syllybus D p1 discussion

    I made silly mistakes in the graphs and I knew the answers :oops:. Answer where they met was 7km as I have heard. And I dont know about the graphs :( Why didn't you get +-underroot 6? What method u used for it? I used completing square method.
  2. F

    Maths, Addmaths and Statistics: Post your doubts here!

    It followed the path like an arc of a circle and rotated 125 degrees to the left
  3. F

    Maths, Addmaths and Statistics: Post your doubts here!

    I believe Marking Scheme is wrong here or maybe I am wrong. Sorry.
  4. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Ok wait let me solve it then I'll tell you. No Problem :)
  5. F

    mathematics syllybus D p1 discussion

    Last one was 3+-underroot 6. Cube number was 64 (4 cube). Which one was 78 factor one? Try to make me remember. 1.44:1 was absolutely correct.
  6. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Dont spam. Once is enough.
  7. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Which Part?
  8. F

    mathematics syllybus D p1 discussion

    I If this is true then Im dead.
  9. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Cost Price = $647.50 Selling Price = $x Matthew's Profit = $160 Equation: x * 15/100 = x - (647.50 + 160) x = $950.
  10. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Ok wait.
  11. F

    Maths, Addmaths and Statistics: Post your doubts here!

    (c)(ii) - Bill's age after 19 years = y + 19 - Ada's age after 19 years = x + 19 - Ada after 19 years = 2 (x+19) = y + 19 - 2x + 19 = y (c)(iii) 6x - 5 = y ----- 1 2x + 19 = y ------2 Solve them like simultaneous equations. Answer of x = 6 Answer of y = 31
  12. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Let x be Ada's Age Let y be Bill's age Bill's age 1 year ago = y-1 Ada's age 1 year ago = x-1 6 (x-1) = y-1 6x - 5 = y
  13. F

    Maths, Addmaths and Statistics: Post your doubts here!

    (i) Equation: (80-x) + x + (35-x) = 100 - x = 15 (ii) Greatest value of Y is possible only when x = 35. - Thus, 80-35 + 35 + y = 100 - y = 20
  14. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Form an equation. - πR²/5 - πr² = πr² - πR²/5 = 2πr² - πR² = 10πr² - R² = 10r² Therefore, Ratio 1:10
  15. F

    mathematics syllybus D p1 discussion

    Nice :(
  16. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Why are you doing Paper 1 o.O
  17. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Q.2(b)(i). Sum of interior angles = N-2 (180) - 5-2 (180) = 540 - Let x be the angle AED, so angle EDC = 2x - According to this, 2x + x + 110 + 70 + 120 = 540 - x = 80 (Angle AED) Q.2(b)(ii) Sum of Angles in Triangle = 180 - Angle EDA = 10 + 80 + x = 180 - x = 90. Hope it helps.
  18. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Which Part?
  19. F

    Maths, Addmaths and Statistics: Post your doubts here!

    Paper 21 or 22 Variant?
  20. F

    mathematics syllybus D p1 discussion

    I drew it wrong. Total marks lost in P1 = 9. Hope to get at least 95 in P2. A* is must in Maths.
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