+ Reply to Thread
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 23
  1. #11
    Gothel's Avatar
    Gothel is offline Skip the drama, stay with Mama!
    Join Date
    Apr 2007
    Location
    Stressame Street
    Posts
    6,515
    Thanks
    2,368
    Thanked
    2,113
    Reviews
    1
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 postsAmethyst Star - 5,000 posts
    Quote Originally Posted by GM01 View Post
    Assuming one rider per horse, the number of horses is 42.

    X = horses
    2X = heads (one per horse and one per rider)
    6X = legs (four per horse plus two per rider)

    The equation given is Legs = 84 + 2 x Heads

    Therefore:

    6X = 84 + 2 x (2X)
    6X = 84 + 4X
    6X - 4X = 84 (+4X - 4X)
    2X = 84
    X = 42
    Ahhhhh! I was using x for heads & y for legs x = 2y + 84
    But of course, they can all be x because they all relate, in proportion!
    Clever cookie @GM01!

  2. #12
    Gothel's Avatar
    Gothel is offline Skip the drama, stay with Mama!
    Join Date
    Apr 2007
    Location
    Stressame Street
    Posts
    6,515
    Thanks
    2,368
    Thanked
    2,113
    Reviews
    1
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 postsAmethyst Star - 5,000 posts
    Quote Originally Posted by phoebebebe View Post
    oh i totally invented a comma in there, "84, more than the number of legs"
    in which case, i got nothin!
    Join the club lol!

  3. #13
    Join Date
    Dec 2013
    Posts
    65
    Thanks
    25
    Thanked
    26
    Reviews
    0
    Quote Originally Posted by Gothel View Post
    Join the club lol!


    i should have known i'd read it wrong when it was too easy...

  4. The Following User Says Thank You to phoebebebe For This Useful Post:

    Gothel  (20-08-2014)

  5. #14
    Join Date
    Oct 2012
    Location
    QLD
    Posts
    2,247
    Thanks
    441
    Thanked
    1,522
    Reviews
    3
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 posts
    Awards:
    300 posts in a week - week ended 11/9/14200 Posts in a weekBusiest Member of the Week - week ended 11/9/14100 Posts in a week
    Nice work. All the answers online said 42.

  6. The Following User Says Thank You to Best Things For This Useful Post:

    Gothel  (20-08-2014)

  7. #15
    Gothel's Avatar
    Gothel is offline Skip the drama, stay with Mama!
    Join Date
    Apr 2007
    Location
    Stressame Street
    Posts
    6,515
    Thanks
    2,368
    Thanked
    2,113
    Reviews
    1
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 postsAmethyst Star - 5,000 posts
    Quote Originally Posted by anewme View Post
    Is it 21

    21 horse plus 21 riders is 126 legs.
    Minus 42 heads is 84 legs .

    I am hopeless at this
    That's a good way of coming at the problem . You're not hopeless! This is a tough one, I've been working through a book of problems and this one had me stumped.

  8. #16
    Join Date
    Jan 2012
    Location
    Perth, Western Australia
    Posts
    1,914
    Thanks
    364
    Thanked
    1,502
    Reviews
    0
    Achievements:Topaz Star - 500 posts
    Quote Originally Posted by Gothel View Post
    Ahhhhh! I was using x for heads & y for legs x = 2y + 84
    But of course, they can all be x because they all relate, in proportion!
    Clever cookie @GM01!
    You could actually use x and y and get to the same solution, you'd just need a separate equation so that you can equate one of the variables to cancel it out.

    y = 3x (3 legs for each head per horse rider combo), &
    y = 2x + 84

    y = y
    3x = 2x + 84
    3x - 2x = (2x - 2x) + 84
    x = 84

    As x was heads and not horses in this example equation, then the number of horses is 1/2 x, 42.


    ..
    ...

    Yes, insert giant nerd symbol here!!! I'm very good at maths

  9. The Following User Says Thank You to GM01 For This Useful Post:

    PinkPopsicle  (20-08-2014)

  10. #17
    Gothel's Avatar
    Gothel is offline Skip the drama, stay with Mama!
    Join Date
    Apr 2007
    Location
    Stressame Street
    Posts
    6,515
    Thanks
    2,368
    Thanked
    2,113
    Reviews
    1
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 postsAmethyst Star - 5,000 posts
    That's ringing bells from high school maths *cough* 25 years ago!
    I was doing
    L = 2H + 84 and had realised I could do 1H/3L per unit but didn't think to combine them like that.

    Dammit I can see what you're doing but I can't quite *understand* it !!!

  11. #18
    Join Date
    Jun 2005
    Location
    At the beach
    Posts
    10,495
    Thanks
    1,430
    Thanked
    9,003
    Reviews
    3
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 postsAmethyst Star - 5,000 postsEmerald Star - 10,000 posts
    Awards:
    Busiest Member of the Week - week ended 17/10/14100 Posts in a week
    When I was in high school and I'd get a question like that I'd write an essay on why horse riding was cruel to the horses and why I felt I couldn't answer the question as I needed evidence they were fairly treated.

    Yes, that is why I became a lawyer and not a mathematician.

  12. The Following 5 Users Say Thank You to Sonja For This Useful Post:

    Full House  (20-08-2014),GM01  (20-08-2014),Gothel  (20-08-2014),LoveLivesHere  (20-08-2014),Ngaiz  (20-08-2014)

  13. #19
    Join Date
    Jan 2012
    Location
    Perth, Western Australia
    Posts
    1,914
    Thanks
    364
    Thanked
    1,502
    Reviews
    0
    Achievements:Topaz Star - 500 posts
    Quote Originally Posted by Sonja View Post
    Yes, that is why I became a lawyer and not a mathematician.
    Funnily enough.. I'm studying law at the moment!!
    I may need to release some of my maths knowledge to accommodate some spelling and grammar

  14. #20
    Join Date
    Jun 2005
    Location
    At the beach
    Posts
    10,495
    Thanks
    1,430
    Thanked
    9,003
    Reviews
    3
    Achievements:Topaz Star - 500 postsAmber Star - 2,000 postsAmethyst Star - 5,000 postsEmerald Star - 10,000 posts
    Awards:
    Busiest Member of the Week - week ended 17/10/14100 Posts in a week
    Nah it was just my way of hiding the fact when it came to maths I had NFI.

    Maths actually comes in very handy with law. You should ace it


 

Similar Threads

  1. Maths (??) help. Lottery winning systems
    By 2BlueBirds in forum General Chat
    Replies: 0
    Last Post: 13-08-2014, 21:33
  2. Help with maths homework.
    By waterlily in forum General Parenting Tips, Advice & Chat
    Replies: 29
    Last Post: 24-07-2014, 20:00
  3. Khan Academy - free online maths lessons for kids
    By sweetseven in forum Home Schooling
    Replies: 3
    Last Post: 30-08-2013, 20:34

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
free weekly newsletters | sign up now!
who are these people who write great posts? meet our hubbub authors!
Learn how you can contribute to the hubbub!

reviews
learn how you can become a reviewer!

competitions

forum - chatting now
christmas gift guidesee all Red Stocking
Fridge-To-Go Australasia
Xmas with a NEW Fridge-to-go Lunch Bag! Fridge-To-Go Australasia
Fridge-to-go 8 hour cooler bags are ideal under the Christmas tree! Now in modern lunch bag designs - fill them with toys and chocolate to make parents and kids happy! Stay super cool and eat healthy and fresh food all summer long!
sales & new stuffsee all
Pea Pods
Buy 2 Award Winning Pea Pods Reusable One Size Nappies for only $38 (in your choice of colours) and receive a FREE roll of Bamboo Liners. Don't miss out, we don't usually have discounts on the nappies, so grab this special offer!
Special Offer! Save $12
featured supporter
Baby Car Seats and Infant Car Restraints
Buying a baby car seat? Check out our 'go-to' links here!
gotcha
X

Pregnant for the first-time?

Not sure where to start? We can help!

Our Insider Programs for pregnancy first-timers will lead you step-by-step through the 14 Pregnancy Must Dos!