Thursday, September 17, 2009

Dad's Wallet

Solve the following problem.  Give your answer in the comment section with an explanation of the strategy you used, why you used it and how you are ABSOLUTELY sure your answer is correct!

On Wednesday, Dad got paid,  Thursday morning my brother took 1/2 the money to go open a checking account (because he was always short of money). On Friday, I needed some for a movie, so I took half of what remained.  Sis came along next, and took half of the remaining money.  Dad then went to gas up the car and used half of the rest of his money, and he wondered where it all went so fast.  He only had $5 left.  How much money did he start with in his wallet?
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67 comments:

  1. AnonymousSeptember 17, 2009 at 2:58 PM

    The family started with $80.00. The strategy I used was write the key things down and I just added 5 plus 5 plus 10 plus 20 plus 40. I think I am right because I checked my work. Benjamin

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  2. AnonymousSeptember 17, 2009 at 3:01 PM

    Ms. Adams
    The family started with $80.00. I got that answer by, first I started by picking a number like 80. Next I subtracted half of that which is 40. Next I subtracted half of that which is 20. Then I subtracted half of that which is ten. Then the dad took half of ten which is five. That's what I came up with Matthew

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  3. DaryaSeptember 17, 2009 at 3:25 PM

    I think the answer is $40.00 because we first take away half for the brother (1/2), then another for the girl (1/4), then one last half for the sister (1/8). So he has $5 left, I figured the answer with this info by looking at the fraction I had and multiplying it by what I had left.(8x5=40)

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  4. DaryaSeptember 17, 2009 at 3:27 PM

    Anyone on?

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  5. DaryaSeptember 17, 2009 at 3:28 PM

    ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

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  6. AnonymousSeptember 17, 2009 at 3:30 PM

    The family started with $80.00. I got the answer by starting with $5.00 and worked my way up. I just kept multiplying the number by 2 untill I got $80.00.
    -Micah

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  7. Ms. AdamsSeptember 17, 2009 at 4:05 PM

    Darya,
    Can you show your thinking by showing the math? You may be onto something here!

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  8. gymnastics nerdSeptember 17, 2009 at 4:09 PM

    I got $40.00 too.i started with five and dubbed it 3 times because the dad looked at his money before he payed!!! not 80.00 if he payed and then look it at his money yes.

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  9. gymnastics nerdSeptember 17, 2009 at 4:17 PM

    ps its from emma

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  10. Alexandra DeweeseSeptember 17, 2009 at 4:17 PM

    is anybody on?

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  11. Alexandra DeweeseSeptember 17, 2009 at 4:18 PM

    This comment has been removed by the author.

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  12. ASeptember 17, 2009 at 4:20 PM

    The family started with $80.00. I got this answer by picking numbers, and then I chose 80.
    I subtracted half of that-
    80-40=40
    Next I subtracted half of that which is 20.
    40-20=20
    Then I subtracted THAT which was 10, so
    20-10=10
    Then the dad took half of 10, which is 5 so they only had 5 left.
    Easy =)

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  13. Alexandra DeweeseSeptember 17, 2009 at 4:23 PM

    Dear Ms. Adams just incase you don't get the message in reading here it is now. If you didn't see my reply on the reading side for last nights homework it is because when I pressed post comment I left the site!! I was susposed to type in the letters that appeared afterwards to confirm the message!!!!!

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  14. Alexandra DeweeseSeptember 17, 2009 at 4:24 PM

    hi nevin

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  15. ASeptember 17, 2009 at 4:26 PM

    Alex-
    Lol
    Miss Adams-
    Do you like my reasoning?
    Everyone else-
    Are u on?

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  16. AnonymousSeptember 17, 2009 at 4:27 PM

    The answer to the question is $80.00. I figured this out by starting with a high number 80 and kept on dividing it by 2. I did this four times because in the problem each charactor takes away half of the !!!!REMAINING!!!! So I disagree with Darya and gymnastics nerd because it said they take half of the !!!!REMAINING!!!!

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  17. bryceSeptember 17, 2009 at 4:31 PM

    By the way this one above me with no name belongs to Bryce and not any of you people that wants to steal it so you can take credit. P.S. It says my moms name on my google account but it belongs to me.

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  18. Alexandra DeweeseSeptember 17, 2009 at 4:31 PM

    I solved the problem by adding all the numbers and then subtracting them in the order they said and I came up with the answer of nothing so now i am going to try something different.

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  19. Alexandra DeweeseSeptember 17, 2009 at 4:32 PM

    who is joni

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  20. ASeptember 17, 2009 at 4:34 PM

    Joni is Bob.
    Bob is Joni.
    Alexandra DeWeese is a girl.
    A girl is Alex.
    Alex likes waffles.

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  21. Alexandra DeweeseSeptember 17, 2009 at 4:35 PM

    AAAAAHHHHHAAAAAA!!!!! The answer is 80.00!
    I found this out by startig with a few random numbers before I got to 80. Then I kept doing the directions until I GOT $5!!!!

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  22. Alexandra DeweeseSeptember 17, 2009 at 4:36 PM

    That is cute nevin!!!!!

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  23. Alexandra DeweeseSeptember 17, 2009 at 4:36 PM

    I do Like waffles and I am a girl thank you!

    ReplyDelete
  24. Alexandra DeweeseSeptember 17, 2009 at 4:39 PM

    Well I would like to chat now that I have Finished my homework

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  25. bryceSeptember 17, 2009 at 4:39 PM

    Alex joni is me bryce It just has my mom's name on my account

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  26. UnknownSeptember 17, 2009 at 4:41 PM

    hey guys. benjamin

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  27. Alexandra DeweeseSeptember 17, 2009 at 4:42 PM

    I agree all the way around with Micca, and Nevin. There answer is exactly what I got.

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  28. UnknownSeptember 17, 2009 at 4:42 PM

    Alex it is $80.00 not 80.00

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  29. Alexandra DeweeseSeptember 17, 2009 at 4:43 PM

    SSSSOOOOORRRRRYYYYY Bryce!!!!!!!!!!

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  30. UnknownSeptember 17, 2009 at 4:44 PM

    it is benjamin

    ReplyDelete
  31. Alexandra DeweeseSeptember 17, 2009 at 4:44 PM

    I know it is $80.00 I was sort of rushing?!

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  32. Alexandra DeweeseSeptember 17, 2009 at 4:45 PM

    benjamin,I know it's you. I was responding to Bryces old responce.

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  33. UnknownSeptember 17, 2009 at 4:46 PM

    where is bryce

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  34. Alexandra DeweeseSeptember 17, 2009 at 4:48 PM

    Hello is anybody home?

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  35. Alexandra DeweeseSeptember 17, 2009 at 4:49 PM

    I don't know I think he left.

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  36. UnknownSeptember 17, 2009 at 4:49 PM

    what

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  37. AidanSeptember 17, 2009 at 4:51 PM

    I was wondering where everyone was.

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  38. Alexandra DeweeseSeptember 17, 2009 at 4:51 PM

    Well ALEXANDRA DEWEESEis signing out.....I love you all!!!!!!!!!oxoxoxoxoxoxoxoxoxoxoxoxo

    ReplyDelete
  39. UnknownSeptember 17, 2009 at 4:51 PM

    want to go to the first question in reading.

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  40. FlyinSeptember 17, 2009 at 4:52 PM

    You all know how to do the problem, right?

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  41. Alexandra DeweeseSeptember 17, 2009 at 4:52 PM

    Sorry Aidan bot I got to go a little bit late for me.SSSOOORRRYY!

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  42. UnknownSeptember 17, 2009 at 4:53 PM

    yes

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  43. Alexandra DeweeseSeptember 17, 2009 at 4:53 PM

    BBBBBYYYYYEEEEE

    ReplyDelete
  44. Ms. AdamsSeptember 17, 2009 at 4:54 PM

    Does the answer change if you start with the $5 rather than at the other end? We have a few different ideas here........

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  45. UnknownSeptember 17, 2009 at 4:55 PM

    Aiden you here

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  46. ASeptember 17, 2009 at 4:55 PM

    There's been a lot of activity on here.
    Yes Aidan, we know how to do the problem.

    Benjamin, let's chat on "Because of Winn Dixie"

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  47. AidanSeptember 17, 2009 at 4:55 PM

    The asnwer is $80





    P.S: I am Flyin!

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  48. ASeptember 17, 2009 at 4:55 PM

    OK Benjamin?

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  49. ASeptember 17, 2009 at 4:56 PM

    Hi Aidan
    OMG would you guys stop commenting right befor me

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  50. UnknownSeptember 17, 2009 at 4:57 PM

    which question.

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  51. UnknownSeptember 17, 2009 at 4:58 PM

    yello

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  52. ASeptember 17, 2009 at 5:00 PM

    Hai

    The question "Because of Winn Dixie"
    The one that ahs Over 100 coments

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  53. AidanSeptember 17, 2009 at 5:01 PM

    You just had to go like this: 5+5=10,10=10=20,20+20=40, and 40+40=80. But if you start backwards, it would still be the same.


    Benjamin, are you crazyb9009?!?!

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  54. UnknownSeptember 17, 2009 at 5:11 PM

    yea hey there is a new question and it is mind trap

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  55. connorSeptember 17, 2009 at 5:20 PM

    the answer is $80.00 because i started with $200.00 but when i tried to split $25.00 it was not a whole number it had decimals and when it was $12.50 you had to split it in half. So it's $6.25 but when it comes to money you can't split a Quarter so that's wrong.Then i looked at $80.00 and split it in half four times i looked at the question again and realized i found the answer.

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  56. Courteney TullySeptember 17, 2009 at 5:26 PM

    $80- I got this answer because I started off with 5 and doubled it because each person kept taking half of the money. 5x2=10 10x2=20 20x2=40 40x2=80 I stopped at 80 because that's how many people took some money! $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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  57. UnknownSeptember 17, 2009 at 5:26 PM

    Conner?

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  58. brookiecookieSeptember 17, 2009 at 6:03 PM

    I did the exact same thing as Courteney, except I must have added wrong somewhere because I got 560. Brook

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  59. Lone WolfSeptember 17, 2009 at 7:40 PM

    I do not think anyone is on so they can not copy my answers mwa ha ha ha ha. The answer I got was $80.00. I started with seventy but I could not divide that equily. So I went to eighty. Half of eighty is fourty half of fourty is twenty half of twenty is ten (huff) and half of ten is five (sigh) OMG did I just say that all.(gasp)

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  60. Lone WolfSeptember 17, 2009 at 7:43 PM

    Anyone. Are you there. Answer The Lone Wolf!$$$$$$$$$$

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  61. ASeptember 17, 2009 at 7:52 PM

    Hi Parker

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  62. Lone WolfSeptember 17, 2009 at 8:08 PM

    Hi Nevin How do you solve the problem

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  63. ASeptember 17, 2009 at 8:10 PM

    This one or the Horse one

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  64. Lone WolfSeptember 17, 2009 at 8:11 PM

    This one!

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  65. ASeptember 17, 2009 at 8:14 PM

    Go to the other topic and talk to me on there, but why do you need to know how I solved this one?

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  66. JGSeptember 17, 2009 at 8:28 PM

    4 poeple took half of the money. 5x2=10x2=20x2=40x2=80 answer 80

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  67. ASeptember 18, 2009 at 4:47 PM

    TO MISS ADAMS:
    May we solve the Party question on here?

    "The party was over. It was a magnificent celebration".

    That one?

    ReplyDelete

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