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    http://pmt.physicsandmathstutor.com/...%20Edexcel.pdf

    q8b

    no-one what to do.

    i put in 20e^(-1/8 x6) but adding up everything doesn't work
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    (Original post by will'o'wisp)
    http://pmt.physicsandmathstutor.com/...%20Edexcel.pdf

    q8b

    no-one what to do.

    i put in 20e^(-1/8 x6) but adding up everything doesn't work
    Create equations for the first and second dose separately and add. So 1 hour after the second dose + 6 hours after the first dose.
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    The second has only been in for one hour. The first has been in for 6 now.
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    (Original post by NotNotBatman)
    Create equations for the first and second dose separately and add. So 1 hour after the second dose + 6 hours after the first dose.
    ok

    10e^(-1/8 x5) + 10e^(-1/8 x1)= 14.177
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    Lol a question almost identical to this one came up in the 2016 paper....
    Edexel recycling questions I see
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    (Original post by will'o'wisp)
    ok

    10e^(-1/8 x5) + 10e^(-1/8 x1)= 14.177
    1 hr after the second dose is 6 hours after the first dose.
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    (Original post by NotNotBatman)
    1 hr after the second dose is 6 hours after the first dose.
    ???????? i don't get it

    the total time for everything is in that equation if i do one multiplying by 6 then i got 7 hours in total when there's only 6

    (Original post by solC)
    Lol a question almost identical to this one came up in the 2016 paper....
    Edexel recycling questions I see
    well den
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    The drug is still in the blood stream so you have to add that on top of the dosage. So you get your answer from part a + 10mg as D
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    (Original post by will'o'wisp)
    ???????? i don't get it

    the total time for everything is in that equation if i do one multiplying by 6 then i got 7 hours in total when there's only 6



    well den
    No,  x = De^{-\frac{1}{8}t}

    "t hours after it has been taken" and it has been 6 hours, so replace t with 6 for the first dose.
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    (Original post by NotNotBatman)
    No,  x = De^{-\frac{1}{8}t}

    "t hours after it has been taken" and it has been 6 hours, so replace t with 6 for the first dose.
    :facepalm::facepalm::facepalm::facepalm::facepalm:
    everytime

    thanks
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    (Original post by will'o'wisp)
    :facepalm::facepalm::facepalm::facepalm::facepalm:
    everytime

    thanks
    I've read a couple of posts from you this evening where you seem to be getting frustrated about not spotting things right away. You really shouldn't worry about this as you are doing everything right by working hard a long time before your final exams. Your efforts will definitely pay off in the end.
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    (Original post by Mr M)
    I've read a couple of posts from you this evening where you seem to be getting frustrated about not spotting things right away. You really shouldn't worry about this as you are doing everything right by working hard a long time before your final exams. Your efforts will definitely pay off in the end.
    https://youtu.be/oHC1230OpOg

    Really tho i can't tell. I did tons of work for that AS physics exam and spent over 50% of my time revising for it out of the 4 subjects i did at the time. E grade out of that. Nothing paid off for that. I wasted a whole year doing something i couldn't do. Hard work didn't pay off.
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    (Original post by will'o'wisp)

    Really tho i can't tell. I did tons of work for that AS physics exam and spent over 50% of my time revising for it out of the 4 subjects i did at the time. E grade out of that. Nothing paid off for that. I wasted a whole year doing something i couldn't do. Hard work didn't pay off.
    If you continue to put in the same amount of effort as you are at the moment then I think it will pay off. You have the time.

    But for M2 especially, you were trying past papers before knowing the basics. Once your mocks are finished, you need to spend time understanding the topics. For this I recommend watching Examsolutions videos - the tutorials, not the exam questions. I felt like you had finished topics without understanding them, which could be yours or your teacher's fault.
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    (Original post by notnek)
    If you continue to put in the same amount of effort as you are at the moment then I think it will pay off. You have the time.

    But for M2 especially, you were trying past papers before knowing the basics. Once your mocks are finished, you need to spend time understanding the topics. For this I recommend watching Examsolutions videos - the tutorials, not the exam questions. I felt like you had finished topics without understanding them, which could be yours or your teacher's fault.
    Let's not forget my Chemistry is 20x worse than my maths.

    Tbh, it's just papers and more revision....
 
 
 
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