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aksik [14]
2 years ago
9

Samual has a collection of toy cars his favorites are the 27 red ones which makes up 60% of his collection how many toy cars dos

e he have??
Mathematics
1 answer:
vagabundo [1.1K]2 years ago
5 0

Answer:

45

Step-by-step explanation:

Use khan acedaemy

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Cards. A deck of 52 cards is shuffled and dealt. Find the probabilities of the following events: a) the tenth card is a queen; b
Veronika [31]

Answer:

  • 0.0374
  • 0.0010

Step-by-step explanation:

number of cards = 52

number of queen = 4

number of spades = 13

A) probability that the tenth card is a queen

drawn time (r) = 1

position of success(x) = 10th

p = 4/52

P( x,r,p) = x-1Cr-1*p^(r) * q^(x-r)

p(10,1,4/52) = 9C0(4/52)^1 * (48/52)^9 = 0.0374

B) probability the twentieth card is a spade

x = 20

r = 1

p = 13 / 52

P(20,1,26/52) = 19C0(26/52)^1 * (26/52)^19 = 0.0010

c)  The last five cards been spades

p(last five cards been spades )

p(48..52, 5, 13/52 ) = 47...52C4(13/52)^5 * (39/52)^48..52 - 5

 

4 0
3 years ago
May I please get help with this question?
Julli [10]
The answer should be 42 times.
5 0
3 years ago
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2r+2s=50<br> Please look at the picture
lidiya [134]

2r + 2s = 50

2r - s = 17

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3s = 33

s = 11

2r - s = 17

2r - 11 = 17

2r = 28

r = 14

so r = 14 and s = 11

answer is C. r = 14, s = 11

4 0
2 years ago
The temperature is changing every day by negative 7 over 18 degree Fahrenheit. What will be the change in the temperature after
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Answer:

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12a^3b^2c
Advocard [28]

Answer:

b. the degree is 3

Step-by-step explanation:

degree is the highest exponent

6 0
3 years ago
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