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A drawer is filled with 2 black shirts, 7 white shirts, and 11 gray shirts. One shirt is chosen at random from the drawer. Find the probability that it is not a black shirt. write your answer as a fraction in simplest form.

Respuesta :

Total =
[tex]2 + 7 + 11 = 20[/tex]
Not black shirts =
[tex]7 + 11 = 18[/tex]
[tex] \frac{18}{20} = \frac{9}{10} [/tex]
Answer is 9/10

Hope it helps.

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