Austin Warby edited How_many_ways_can_we__.tex  over 8 years ago

Commit id: c5c6a1278d0fb69d32f004f688eb12833c2acdd8

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**|**|*** \\  Notice any scenario will result in 9 slots, 2 for the bars, and 7 for the stars(candies). \\  _ \ _ \ _ \ _ \ _ \ _ \ _ \ _ \ _ \\  Simply put all we are deciding in each case is where to put the bars. Therefore we have 9 slots choose 2 slots to place the bars or $\binom {9}{2}$ {9}{2}$. Equivelantly, we also have 9 slots choose 7 slots to place the stars or $\binom {9}{7}$. Feel free to verify that those are indeed the same.