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Alecsey [184]
2 years ago
8

tina has 3 red pens and 2 black pens in the bottom of her book bag.she randomly selects a pin to use then puts it back in her ba

g.later she picks another one.what is the probability that both times she selects a red pin?
Mathematics
1 answer:
Agata [3.3K]2 years ago
6 0

Answer:

the probability that this girl pulls out a red pen is 3/5 or 60%

Step-by-step explanation:

there are 3 red pens

and 2 black pens.

that means there are 5 pens

so when she reaches down. she can pick up 3 out of the 5 pens

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Angelique had 20 tokens to use for games at the arcade. She lost some of them. Her dad tripled the tokens she had left. Angeliqu
alexandr402 [8]

Answer:  Both the expressions are exactly same . Both are representing the number of tokens she has now.


Step-by-step explanation:

Given: The total number of tokens Angelique has= 20

Since, she lost some of them, let the number of lost tokens be t.

Then, The remaining  tokens she has = 20-t

Then her father triples the tokens she has.

now, the number of token she has=3(20-t)....>Angelique's expression

By using distributive property,

The number of token she has=3\times20-3t

⇒The number of token she has=60-3t...> Dante's expressions

Hence, both are the same expressions. Both are representing the number of tokens she has now.

7 0
2 years ago
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The 200 students in a school band will attend awards dinner. A random survey of 25 of these students was conducted to determine
fenix001 [56]

Step-by-step explanation:

Beef = 12 * 8 (cause 25 * 8 = 200)

Beef = 96

Chicken = 8 * 8 (cause 25 * 8 = 200)

Chicken = 64

Pasta = 5 * 8 (cause 25 * 8 = 200)

Pasta = 40

Answer- C] There are 32 more students who want beef meal more than want a chicken meal

8 0
2 years ago
Ford Motor Company sells the Fusion SES for $24,400. The Fusion Hybrid sells for $29,975. What is the percentage increase in pri
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Percent increase is:
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(29975-24400)/24400
5575/24400= .228 * 100=
22.8%
6 0
2 years ago
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Let S={a,b,c}. a. List all permutations of S. b. List all 2-combinations of S.
Korolek [52]

Answer: The answer is as follows:

Step-by-step explanation:

Given that,

S = {a,b,c)

(a) All the permutations of S are as follows:

= 3!

= 3 × 2 × 1

= 6

  • (a,b,c), (a,c,b), (b,a,c), (b,c,a), (c,a,b), (c,b,a)

(b) All 2-combinations of S are as follows:

= 3

  • (a,b), (b,c), (a,c)

4 0
2 years ago
A square ceramic tile has an area of 20.25 square inches. How long is one side?!
Anna [14]

a square's sides are all the same.

Root the area to get the measurement of one side

√20.25 = 4.5

4.5 in. is the measurement of one side.

hope this helps

7 0
2 years ago
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