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Math Help - Conversions?

  1. #1
    Member >_<SHY_GUY>_<'s Avatar
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    Post Conversions?

    If an ant walks at a rate of 0.0001 M/S, how many minutes should it take it to walk down Jane's finger-distance of 7.6 cm.

    The answer is 2.6--->
    but im lost in what to convert first...
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by >_<SHY_GUY>_< View Post
    If an ant walks at a rate of 0.0001 M/S, how many minutes should it take it to walk down Jane's finger-distance of 7.6 cm.

    The answer is 2.6--->
    but im lost in what to convert first...
    it doesn't matter what you convert first. you can convert m --> cm and then s --> min or vice versa
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  3. #3
    Member >_<SHY_GUY>_<'s Avatar
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    Quote Originally Posted by Jhevon View Post
    it doesn't matter what you convert first. you can convert m --> cm and then s --> min or vice versa
    so that would mean that i can go

    0.0001 m x ...... wait.... but i would have to cancel one of the units first.
    -----------
    s

    multiply it by 91.44 cm/ 1 m?
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  4. #4
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by >_<SHY_GUY>_< View Post
    so that would mean that i can go

    0.0001 m x ...... wait.... but i would have to cancel one of the units first.
    -----------
    s

    multiply it by 91.44 cm/ 1 m?
    see post #2 here for two methods of how to convert units

    (by the way, 1 m = 100 cm)
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  5. #5
    Member >_<SHY_GUY>_<'s Avatar
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    Unhappy

    Quote Originally Posted by Jhevon View Post
    see post #2 here for two methods of how to convert units

    (by the way, 1 m = 100 cm)
    Wow... How Did I Miss 1 m = 100cm Thanks

    so in other words...Tackle one unit until it is on the one unit you want.... then tackle the next?
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  6. #6
    Member >_<SHY_GUY>_<'s Avatar
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    Sorry for the double post

    i keep getting 4.56 as the answer...but before multiplying it from 7.6....i get .6...
    i know i am doing something wrong
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  7. #7
    Super Member Aryth's Avatar
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    Well, you can use 1 number at a time until you can move to the next one. We start with:

    0.0001 \frac{m}{s}

    Now, we know that:

    1 m = 100 cm, so:

    100\frac{cm}{m}*(0.0001)\frac{m}{s}

    = 0.01\frac{cm}{s}

    Now, we also know that:

    60 s = 1 min, so:

    60\frac{s}{min}*0.01\frac{cm}{s}

    = .6 \frac{cm}{min}

    So, what you have to do is divide that answer into the total distance:

    \frac{7.6 \ cm}{.6\frac{cm}{min}}

    = 7.6 \ cm*\frac{1}{.6}\frac{min}{cm}

    = 12.6 \ min

    So, I got a completely different answer than you... But I'm pretty sure I didn't do anything wrong.
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