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there are 25 red marbles, 35 blue marbles , and 20 white marbles in a bag . if you reach into the bag without looking, what is the probability, in percent, that you will pick a Blue Marble? 2 an item cost $8. 50. Is tact is 9. 25% , what is the items final cost?

Respuesta :

In this problem, we have a bag with:

• 25 red marbles,

,

• 35 blue marbles,

,

• 20 white marbles.

The probability to pick a blue marble is given by:

[tex]P(\text{blue})=\frac{\text{\# of blue marbles}}{\text{total \# of marbles}}=\frac{35}{25+35+20}=\frac{35}{80}=0.4375=43.75％.[/tex]

Answer

The probability to pick a blue marble is 43.75%.

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