06-01-2018
Mathematics

contestada

If a bag of marbles containing 15 marbles has 3 yellow, 4 white, and 8 blue marbles, how many samples of 2 can be drawn in which both marbles are blue?

Respuesta :

07-01-2018

there are 8 marbles so we want 8c2 which is 8*7/2 = 28

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