MATH TIME!

Discussion in 'User Topics' started by Mr.Lame, Jan 9, 2018.

  1. MarkFL

    MarkFL Guest

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    Okay, so what I would do is begin by setting:

    m = 13

    or:

    13 = -(1/2)|s - 55| + 20

    Subtract 20 from both sides:

    -7 = -(1/2)|s - 55|

    Multiply both sides by -2:

    14 = |s - 55|

    This will be true if:

    s - 55 = ±14

    Add 55 to both sides:

    s = 55 ± 14

    So, we have:

    s = 41, 69

    Let's let R be the retail price and W be the wholesale price. From the given information, we are tole the relationship between the two is:

    R = 1.75W + 6 = (7/4)W + 6

    We need to solve this for W, to get W as a function of R. So subtract 6 from both sides:

    R - 6 = (7/4)W

    Multiply both sides by 4/7:

    W = (4/7)(R - 6)

    Now, we have a formula we can use to answer the given question. We are told:

    R = 146

    Hence:

    W = (4/7)(146 - 6) = (4/7)(140) = (4/7)(20*7) = 4*20 = 80

    Thus, we find that the wholesale price of a coat that retails for $146 is $80. :)
     
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  2. Mr.Lame

    Mr.Lame Veteran

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    OMG HOW DID I NOT GET THIS :cry:
     
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  3. MarkFL

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    Okay...here is your quiz...

    lamequiz01.png
     
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  4. Mr.Lame

    Mr.Lame Veteran

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    Mark I owe you a gift card or something haha
     
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  5. MarkFL

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    I appreciate the sentiment, but I enjoy helping people with math. :)
     
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  6. tool

    tool Addict

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    Please approve my moderated post.
     
  7. MarkFL

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    I just did before entering this thread. :)
     
  8. tool

    tool Addict

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    Not that derailing thread is my specialty but I could have swear I saw 25.jpg a picture of a dead deer.
    How do you search for an image actually?
     
  9. MarkFL

    MarkFL Guest

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    You'd probably have to be able to query the database to search for something like that...I don't get anything when I use the forum search, nor when I use google with the site: modifier. :(
     
  10. tool

    tool Addict

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    Oh, PM me the link please. I saw it randomly while logged out. I wasn't sure since it was only a thumbnail.

    Edit: Missread, I thought you found it using Google.
     
  11. MarkFL

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    It turns out I had a typo in my google search...but I get 8 pages of results...LOL!
     
  12. Mr.Lame

    Mr.Lame Veteran

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    @MarkFL

    1) T
    2) T
    3) T
    4) F
    5) T
    6) F
    7) T

    8) ? (-infinity,infinity)?
    9) [0,Infinity)
    10) A) [4,-4] , B) ??? , C) [1,-2]
    11) ^2Root B x ^2RootAC
    12) Yes Root X^2 = x , x*x = X^2
    13) ??
    14) x(ax+b)
    15) (3a^2+2b^3)(9a+4b^3)
    16) ? I get to x(x^2-8x+19) and that's about as far as I can get unless I use the quadratic equation.
    17) ???
    18)x^4y^6(X+Y)(X-Y) (I feel this is wrong haha)
    19) ^2root 2, -2
    20) F (imaginary is (-) right?)
    21) T
    22) F
    23) ? (not sure)
    24) T (I think?)
    A) x = -b/a
    B) ????
    C) X = 9 or -5

    25) ? No idea how to get that.
     
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  13. MarkFL

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    Just wanted to leave a quick note that I will grade your quiz tonight when I am in for the night. :)
     
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  14. Mr.Lame

    Mr.Lame Veteran

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    Thanks Mark!!! I feel like I did okay, but got a lot wrong. haha
     
  15. MarkFL

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    Okay, here are your results. :)

    lamequiz01a.png
     
  16. MarkFL

    MarkFL Guest

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    Number 11 had a formatting issue...it should be:

    lamequiz01b.png
     
  17. tool

    tool Addict

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    I just realize something important!

    I can actually ask you how to write down the language properly in mathematical symbolism for any logical intuition I have.
     
  18. MarkFL

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    Logic isn't an area in which I have much expertise, but I know folks who do. :)
     
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  19. Mr.Lame

    Mr.Lame Veteran

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    @MarkFL Well I didn't do as bad as I thought I did at least haha got some work still do to, going to need help on more of the word problems soon T.T
     
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  20. Mr.Lame

    Mr.Lame Veteran

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    @MarkFL Need some assistance with 1 & 5 not 100% sure what to do...
     

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