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umka21 [38]
2 years ago
8

A jar contains 28 marbles. Half of the marbles are red. Half of the non-red marbles are white and the rest are blue. Todd chose

a white marble at random and kept it. What is the probability that when Hosea now draws a marble it will also be white
Mathematics
1 answer:
larisa86 [58]2 years ago
3 0

Answer:

2/9

Step-by-step explanation:

28 marbles in all

"Half of the marbles are red."

28/2 = 14 red

"Half of the non-red marbles are white..."

14/2 = 7 white

"...and the rest are blue."

25 -14 -7 = 7 blue

"Todd chose a <u>white marble</u> at random... " -from the bag that has...

14 red 7 white 7 blue

"... and <u>kept it</u>."- so now the marbles left in the jar are...

14 red 6 white 7 blue

P (white) = Number of white marbles/ Total number of marbles = 6/27 = 2/9

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