Respuesta :

Answer:

9/17

Step-by-step explanation:

Chance of being over 40:

[tex] \frac{20 + 30 + 35}{255} = \frac{1}{3} [/tex]

Chance of drinking

root beer:

[tex] \frac{25 + 20 + 30}{255} = \frac{75}{255} [/tex]

Chance of drinking root beer and being over 40

[tex] \frac{1}{3} \times \frac{75}{255} = \frac{25}{255} [/tex]

Chance of drinking root beer OR being over 40

[tex] \frac{1}{3} + \frac{75}{255} - \frac{25}{255} = \frac{135}{255} = \frac{9}{17} [/tex]

Wolfyy

20+30+35/255

1/3 chance of being 40+ years old

20+25+30/255

75/255 chance of drinking root beer

75/255 * 1/3

25/255 chance of drinking root beer being 40+ years old

75/255 - 25/255 * 1/3

135/255

9/17 chance of drinking root beer under the age of 40 years old.

Best of Luck!

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