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Mathematics 17 Online
OpenStudy (anonymous):

Check my answer,Please! In the Math Club, 7 of the 20 girls are seniors, and 4 of the 14 boys are seniors. What is the probability of randomly selecting a boy or a senior to represent the Math Club at a statewide math contest? =(7/34)+(4/34)?

OpenStudy (anonymous):

34 In All. 14 boys (14/34) 11 Seniors, - 4 so we don't double count. (14/34) + (7/34)

OpenStudy (anonymous):

14 boys and 7 girl seniors is 21 so \[\frac{21}{34}\]

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