how to survive an avalanche paragraph, 8 sentences. with 2 pieces of evidence
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Number of ways of selecting at least one white marble
= Total number of ways to select 3 marbles - Total number of ways to select 3 marbles such that no white marble is selected.
= 9c3 - 6c3
because there are 9 total marbles and 6 non white marbles
= 84 - 20
= 64
merielalex:
hw do u know
am so sry I had answered a different question by mistake I had on yur question.... am so sryyyy
but am sry
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