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March 29, 2017

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Jack has 2009 unit cubes glued together to form a cuboid. He opens a packet containing 2009 stickers. He has enough stickers to stick one on each cube. How many stickers does he have left?

  • math - ,

    x^2 y = 2009
    I fooled around factoring 2009 and the only square I found that was a factor was 49
    49 * 41 = 2009
    so
    7 * 7 * 41 = 2009
    so I have 2 faces that are 7*7 or 49+49 = 98 stickers
    then I have fours faces that are 7*41
    so 4*7*41 = 1148
    1148 + 98 = 1246 stickers used
    2009 - 12456 = 763 stickers left over

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