sarielluvuxoxo93 sarielluvuxoxo93

21-07-2017
Mathematics

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An activity book has 21 pages of crossword puzzles, 18 pages of cryptograms, and 12 pages of mazes. bianca randomly selects a page, completes the activity, and then randomly selects another page to complete. what is the probability that bianca first completes a maze and then completes a crossword puzzle?

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texaschic101 texaschic101

21-07-2017

21 crosswords, 18 cryptograms, 12 mazes....total of 51 activities

P(maze) : 12/51...reduces to 4/17
P(crossword) 21/50

P(both) : 4/17 * 21/50 = 84/850 = 42/425 <=

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