All Junior Cert Mathematics posts
  • avatar image

    What I got, did everyone else get the same? caolanf

    1)

    a)

    i) 18.02

    ii) 5.7%

    b)

    i) (5+4) x (2+3)

    ii) 5 + (4x(2+3))

    ii) ((5+4)x2) + 3

    2)

    a)

    i) 1/100

    ii) 1/400

    b)

    i) Brand A is cheaper at 1.60 p liter

    ii) 10.20

    3)

    6 on the outside, p n q = 7, p/q = 8, q/p = 4

    4)

    Always

    Sometimes

    Always

    Sometimes

    Sometimes

    5)

    a)

    i)100/20 = 5m per second

    ii)2.5m per second

    b)

    i)Claire

    ii) Bill

    iii)Dee

    c)

    Starts high, drops to zero, curves high again

    6)

    a)

    3.14, 22/7, pi, root 10

    b)

    i) irrational because it can not be expressed as one integer over another

    ii) rational because it can be expressed as one integer over another

    c)

    101, because for every 0 in 10 to the power of 100, 3.14 gains a digit and there are 100 zeros in it.

    7)

    a) x = -1/11

    8)

    b) n = 3s + 4

    c) 42

    d)

    i)1 x, 3x, 5x

    ii) p+6

    9)

    a)

    i)3 squared

    ii)3 to the power of one

    iii)root 3 to power of 3

    iv) 1 over 3 to power of 1/2 by 3

    b) -16n to the power of 4

    c) when x is negative

    10)

    a)

    i) -4, -2, 0, 2, 0, -2, -4

    b)

    i) 2, 1, 0, -1, 0, 1, 2

    11)

    a)

    i) x squared + 10x + 25

    ii) 20x is divisible by 4

    b)

    i)(5x+7n)(5x-7n)

    ii)(2x+3)(x-6)

    12)

    a) 14, 3, 1.69

    b) y is 14 when bag 1 and 2 are equal and 3 when bag 3 and 2 are equal, y can only have one value

    13)

    52a squared

    14)

    b)

    i) 130

    i) 67.5

    iii) 2.5 hours

    c)

    i) 180

    ii) 20, -120

    1. avatar image

      Name

      q2 part ii was 4 brand B and a brand A at 9.60 I think

    2. avatar image

      geniuse

      for that i got 9

      because 1.80(5)=9

    3. avatar image

      geniuse

      the rest of them are right i think

    4. avatar image

      Suitcasey114

      I got Brand A was 1.80,so my total was 9.60,and p = 2y + 7.The rest seem to make sense

    5. avatar image

      caolanf

      Actually wrote the both of those in the exam suitcasey114, just wrote them down wrong here

    6. avatar image

      jacob lehane

      9A ii) I got three to the power of zero because any number to the power of zero equals to one

    7. avatar image

      Jack_6934

      How do you remember all the answers, have you got the test??

    8. avatar image

      caolanf

      Got that too jacob lehane, you're right, just wrote it down wrong here, the test is on examinations btw

    9. avatar image

      Jack_6934

      Where I can't find them can you give a direct link

    10. avatar image

      caolanf

      Here https://www.examinations.ie/tmp/1465582215_4779291.pdf

    11. avatar image

      Suitcasey114

      Thank God,when I saw you got a different answer for the number pattern,I got scared I made another mistake (I think I made a few,when I look at your answers),but if it's right,it's right.Also,geniuse,I think the question meant she had to buy them as they were so it would have been 3.60(5)=18.00 for 10l.Maybe I'm wrong I don't know

    12. avatar image

      caolanf

      Think you're right about that

    13. avatar image

      student331

      Q14, for a, I got 10 and for b, I got -90. I think I did it wrong.

      I also got n=3s+1 for general term and I got 43 for the next part.

      and also for root 27, I got 3 to the power of 1 and a half

      I'm starting to get stressed now 😌

      And what's q10? Is that the number line because I thought x was less than 4 for natural and intiger so I didn't include it.

    14. avatar image

      student331

      Also, at first I got the same answer as you for tick the box bit then I changed 2 of them because for some reason there was a 'never' box. It really confused me.

    15. avatar image

      Elisha447

      If I did fairly bad on this paper (around 50%) but got a lot better (like near 80%) on paper 2 would I still be able to get a c?? Does anyone know how to get the overall result

    16. avatar image

      student331

      If that's what you got, then I think you would get 65%. Good luck on p2. It's generally easier than p1 especially since you can learn off the theorems and constructions.

    17. avatar image

      student331

      Sorry, forget my comment about the numberline

    18. avatar image

      Elisha447

      Okay thanks and good luck too :)

    19. avatar image

      Student90029

      What does the new function look like in question 10 (b) part 2

    20. avatar image

      Student90029

      And for question 11 how did you get that answer? If they are the same answer wouldn't they just cancel out and then your answer would be 0 and then 4 divided into 0 by 0? I'm not sure though just wondering

    21. avatar image

      Suitcasey114

      It gives you 20x over 4 = 5 :) Just wondering what other people got for the last part of 8,I was convinced my answer was right,and thought nothing of it,whilst doing it,but half the country had problems,just wondering what other got

    22. avatar image

      student331

      Student90029 I think its supposed to be a w shape

    23. avatar image

      Student90029

      But if you get X squared +10x+25-(X squared +10x + 25) they cancel out as it signs changed, they ask in the question for the equation to be divisible by 4 not just the 10x+10x , I got 0 as I believe they cancel out and 0 divided into 4 0 times

    24. avatar image

      Student90029

      Was it meant to be a curve I herd what people are telling me but I got the opposite to what it was ?

    25. avatar image

      davidkeenan12345

      for 2 b i got 1/4

    26. avatar image

      davidkeenan12345

      anyone else get that

    27. avatar image

      Sarah2014

      for 2 a I said 0.01 would I still get marks because I didn't write 1/100???

    28. avatar image

      AubernGene

      For question 13 I got 26a squared for the area of the square

    29. avatar image

      student331

      Davidkeenan, you had to change 0.5 to metres but I'd say you would get attempt markd

    30. avatar image

      rocky123

      For Q.6. (a) the correct order is 3.14 , pi , 22/7, root 10

    31. avatar image

      Aaron177

      Suitcasey, for the last part of 8 I got n= 3s+4, I think it is correct, it holds with the stages

    32. avatar image

      Aaron177

      Yes student 90029 I think it is meant to be a 'W' shape to, but not sure

    33. avatar image

      Suitcasey114

      Maybe I wasn't clear I got 3s +4,but I meant the bit about Yoko and got p = 2y + 7

    34. avatar image

      Elisha447

      I got n= 4 + 3s aswell !'

    35. avatar image

      Aaron177

      For 8 b to find the equation, I drew a graph to find slope.

      I then subbed the slope and two points into the ' y-y1= m(x-x1)' formula in which I got n= 3s + 4

      What did anyone else do?

    36. avatar image

      Aaron177

      I got p= 2y + 4 I think for that one

    37. avatar image

      Aaron177

      What way did u go around your suitcases?

    38. avatar image

      Suitcasey114

      N = 1 +2S,so I subbed in y + 3 for s,and got N=2y + 7,and subbed in p for n to get p =2y + 7

    39. avatar image

      Aaron177

      I think that's right, I probably did mine wrong

    40. avatar image

      Aaron177

      Suitcasey, what did u say for 7 a, if u don't mind me asking?

    41. avatar image

      Suitcasey114

      No idea,if everyone found it so hard,it couldn't have been that easy,but it makes sense so..

    42. avatar image

      MLGPRO

      Just leave it m8 It's done already

    43. avatar image

      Aaron177

      I think they should have used ' ' marks to make their point more clear, can be interpreted in many ways, but I heard they hav to hav the marking scheme reflect the toughness of some of the paper.

    44. avatar image

      sophie544

      For 4 I think 2 and 4 are never

    45. avatar image

      Suitcasey114

      For 7 a ,I got -1 over 11. I thought it was really weird when I got it,but when I subbed in it worked so it has to be right

    46. avatar image

      sophie544

      @suitcasey I got that and kept thinking o was wrong because it was such a mad number

    47. avatar image

      M4321

      Did people get a diamond shape with their line on q10

      B) when you had to Draw h(x) squared draw the line

    48. avatar image

      EH458

      ^^ no I just moved the line up so it would originate at the origin, I probably did it wrong though..

    49. avatar image

      Stephen12343

      For 1 b) ii i said 5 + 4 * (2+3) and for iii I said (5+4) * 2 + 3. Would I be given the marks as using the oder of operations i still get the right answers?

    50. avatar image

      Stephen12343

      For 2 ii) i put down 10 euro ass if you divide 5 by .75 litres i got 6.6 recurring which gives 10

    51. avatar image

      EH458

      For 2 ii) I got €9.60, anyone else? I used a combination of both... Something like 4 of the 750 ml ones which gives you 3 litres and one of the 2 litre ones which adds up to 5 litres. The price for the 750 ml ones is 1.50 x 4 = 6, and the price of the 2 litre one is 3.60, so 6 + 3.60 = €9.60

    52. avatar image

      Student90029

      I got a diamond shape too I think , the same shape but upside down and it then made a diamond in the centre?

    53. avatar image

      Cunn16

      Answers for P2?

    54. avatar image

      Jack_6934

      We're nearly all your answers right? Want to correct my paper.

    55. avatar image

      Me

      Share files from your computer
      loader