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What equation should I use?

  1. Apr 6, 2005 #1
    What equation should I use? Are there terms and information that is 'hidden'?

    There are two questions that are very simmilar I'll only post one and try the second one myself.

    "How many multiples of 6 are there between 65 and 391?"
     
  2. jcsd
  3. Apr 6, 2005 #2
    the first multiple of 6 after 65 is obviously 66 which is 6x11, then you divide 391 by 6 find out what the last multiple in the range is, and by what you have to multiply 6 by to get it. Then subtract 11 from the factor that gets you closest to 391 to find out how many multiples are in your range. hope that was clear enough...
     
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