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21-02-2020
Mathematics

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WILL MARK THE BRAINLIEST
A gardener is selecting plants for her garden. She chooses five plants that are poisonous but non-medicinal, seven plants that are medicinal and poisonous, and nine plants that are medicinal but not poisonous. What is the probability that a plant selected at random from this garden will be medicinal?
a. 3/7
b. 5/21
c.12/21
d. 16/21

Respuesta :

igoroleshko156 igoroleshko156

21-02-2020

Answer:

Option D, 16/21

Step-by-step explanation:

Step 1: Add all of them together

5 + 7 + 9

21

Step 2: Figure out how much of the plants are medicinal

7 + 9

16

Step 3: Figure out the probability

16/21

Answer: Option D, 16/21

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