crislainereis15 crislainereis15

18-12-2015
Mathematics

contestada

uma urna contem 7 bolas brancas, 5 bolas pretas e 4 bolas vermelhas. qual a probalidade de retirarmos, ao acaso, uma bola preta?

Respuesta :

18-12-2015

A urna contém 16 bolas no total. 5 deles são pretas.

A probabilidade de retirarmos uma bola preta é

5 / 16 = 0.3125 = 31.25% .

Answer Link

Otras preguntas

The sum of three consecutive integers is −378−378. find the three integers.

Please help with question. thanks for your help! 11 points.

What was Tom's major offense and the object of Aunt Polly's interrogation?

What are Neutron Stars made of?

What effect did the temperature have on the viscosity of the honey?

Answers please??????

Which test tube, A or B, have you determined has the most sugar based on the results of the Benedict's test for monosaccharides?

When people from different regions trade goods with each other, they also exchange ideas. What is the process by which different cultures share ideas and ways o

What part of the rotifer is responsible for crushing food? foot trophi toe cilia

Simplify the expression. w^5(w^2)^-4