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Mars2501 [29]
2 years ago
13

A bag contains 3 red balls and 4 blue balls. 3 balls are selected at random. Find the probability of selecting 3 red balls. ​

Mathematics
1 answer:
QveST [7]2 years ago
3 0

Answer:

Step-by-step explanation:

red balls=3

blue balls=4

total balls=3+4=7

probability of selecting 3 red balls=3/7 ×2/6×1/5=1/35

selecting 1 red ball=3/7

after selecting there are two red balls and total balls are 6

so now P=2/6

and so on .

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SOVA2 [1]

Answer:

15:10

Step-by-step explanation:

Method 1: 5 lots of 3:2 →5 × (3:2) = (5×3) : (5×2) = 15:10

Method 2: 3/2 × 1 → 3/2 ×5/5 = 3×5 2×5= 15:10

boys: 15

girls: 10

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3 years ago
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8 0
3 years ago
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3 years ago
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Jonas wants to mail a package that weighs 4.2 kilogram. how much dose the package weigh in pounds?
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jonas wants to mail a package that weighs 4.2 kilogram. how much dose the package weigh in pounds?​

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