The number of chips of different colors in Vicky's bag is shown below: 5 blue chips 11 pink chips 9 white chips. Vicky takes out

a chip from the bag randomly without looking. She replaces the chip and then takes out another chip from the bag. What is the probability that Vicky takes out a blue chip in both draws? 5 over 25 multiplied by 5 over 25 equals 25 over 625, 5 over 25 plus 5 over 25 equals 10 over 25, 5 over 25 multiplied by 4 over 24 equals 20 over 600, 5 over 25 plus 4 over 24 equals 220 over 600.

Mathematics

1 answer:

yuradex [85]3 years ago

7 0

$|\Omega|=25^2=625\\ |A|=5^2=25\\\\ P(A)=\dfrac{25}{625}=\dfrac{1}{25}$

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den301095 [7]

Answer: Ratios

Step-by-step explanation:

Zalika can work out this estimate by using the ratio of carp to pike that she first caught. This is how to use the ratios:

1) 120 carp : 16 pike --> from given information

2) 136 fish : 16 pike --> add the numbers together to get total fish compared to pike

3) Multiply by 250 --> 34000 divided by 136 is 250

4) 34000 fish : 4000 pike --> 16x250=4000

7 0

3 years ago

It was reported that approximately 15.5 million telephone votes were cast. Each vote was for

kati45 [8]

Answer:

Alejandro received 6.51 million of votes

Laine received 58% of votes

Step-by-step explanation:

If the ratio of "Laine votes" to "Alejandro votes” was 29:21, then the number of "Laine votes" was 29x and the number of "Alejandro votes” was 21x. In total, 15.5 million votes were cast. So

29x + 21x = 15.5 million

50x = 15.5 million

x = 0.31 million

Then

the number of "Laine votes" $=29\cdot 0.31=8.99$ million