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3 years ago

9

A box is filled with 9 brown cards, 2 blue cards, and 9 yellow cards. A card is chosen at random from the box. What is the proba

bility that it is a brown or a yellow card?

1 answer:

Andrei [34K]3 years ago

6 0

Answer:

18/20

Step-by-step explanation:

There are 20 cards in total. The 9 yellow and brown cards makes 18 cards. Since we want the yellow or brown, the probability is 18 out of 20 cards.

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gayaneshka [121]

For this case what we have to take into account is the following variable:
x = represent the unknown number
We now write the following inequality:
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(x + 15)> = 20/4
(x + 15)> = 5
x> = 5 - 15
x> = - 10
The solution set is:
[-10, inf)
Answer:
all possible values for X are:
[-10, inf)

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Step-by-step explanation:

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