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Math Help - Some quick questions

  1. #1
    Junior Member FB FTW's Avatar
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    Some quick questions

    Work out the values of "m" and "n"


    a) 5 8x5 4 = 5 m
    DAM the superscript didnt work. The numbers that look in bold are powers.

    b) I couldnt do this one without using that LaTeX thing, which I dont know how to use anyway, so I used paint!
    It looks stupid I know, but it gets the job done.




    Thanks.

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  2. #2
    Moo
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    Hello,
    Quote Originally Posted by FB FTW View Post
    Work out the values of "m" and "n"


    a) 5 8x5 4 = 5 m
    DAM the superscript didnt work. The numbers that look in bold are powers.

    b) I couldnt do this one without using that LaTeX thing, which I dont know how to use anyway, so I used paint!
    It looks stupid I know, but it gets the job done.




    Thanks.

    Use the following rule :

    \frac{a^b}{a^c}=a^{b-c}
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  3. #3
    Junior Member FB FTW's Avatar
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    I got

    A) m=4
    B) n=1.25

    Correct?

    Thanked btw
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  4. #4
    Moo
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    Quote Originally Posted by FB FTW View Post
    I got

    A) m=4
    B) n=1.25

    Correct?

    Thanked btw
    Hmmm i didn't understand there were two questions ><


    No, first one : a^b \times a^c=a^{b+c}

    second one : \frac{a^b}{a^c}=a^{b-c}


    (click on the pictures to see the latex code )
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  5. #5
    Junior Member FB FTW's Avatar
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    So its
    A) 12
    B) 1.25?
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  6. #6
    Moo
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    Quote Originally Posted by FB FTW View Post

    So its
    A) 12
    Yes
    B) 1.25?
    no !

    it's not 5/4.

    here, a=5, b=8, c=4.

    try to work it out
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  7. #7
    Junior Member FB FTW's Avatar
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    Ummm.
    Are they both 12?
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  8. #8
    Moo
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    Quote Originally Posted by FB FTW View Post
    Ummm.
    Are they both 12?
    what is 8-4 ?
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  9. #9
    Junior Member FB FTW's Avatar
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    Crap sorry, should have wrote it down, thought it was + not -

    So its 4
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  10. #10
    Moo
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    Quote Originally Posted by FB FTW View Post
    Crap sorry, should have wrote it down, thought it was + not -

    So its 4
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  11. #11
    Junior Member FB FTW's Avatar
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    Bet you were:

    'ing!

    :P

    Check my new question for a thank
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  12. #12
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    Thumbs up Angel (Best Solution)

    58 x 54 = 5m
    5 8+4 = 5 m (if the base is same and values are multiplying, then we add the powers)
    512 = 5 m
    So compare power with power and base with base

    m=12

    58 / 54 = 5m

    58-4 = 5 n (if the base is same and values are dividing, then we minus the powers)

    54 = 5 n

    So compare power with power and base with base
    n=4
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  13. #13
    Junior Member FB FTW's Avatar
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    Moo already helped me, but thanks anyway.
    Check out my new question in my sig.
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