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ki77a [65]
3 years ago
10

Levi buys a bag of cookies that contains 6 chocolate chip cookies, 9 peanut butter cookies, 8 sugar cookies and 8 oatmeal cookie

s. What is the probability that Levi reaches in the bag and randomly selects 2 peanut butter cookies from the bag
Mathematics
1 answer:
Nastasia [14]3 years ago
5 0

Answer:

12/155

Step-by-step explanation:

<u>Total number of cookies:</u>

  • 6+9+8+8= 31

<u>Probability of getting a peanut butter cookie at first attempt is 9 out of 31:</u>

  • 9/31

<u>Probability of getting a peanut butter cookie at second attempt is 8 out of 30 as one already taken and the total number has changed as well:</u>

  • 8/30= 4/15

<u>Probability of getting 2 peanut butter cookies is the product of each probability we got above:</u>

  • 9/31×4/15= 12/155
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AlexFokin [52]

The number of books she would have completed in one day will be 2 books.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

Given that:-

Emily completed reading 24/3 books in 32/4 days

Emily completed 8 books in 4 days. The number of the books will be calculated by using the expression below:-

4 days = 8 books

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Therefore the number of books she would have completed in one day will be 2 books.

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2 years ago
P/-8 + 9 &gt; 13 <br> pls explain i don't get it
KonstantinChe [14]

Answer:

p < -32

Step-by-step explanation:

<em>Given:</em> p/-8 + 9 > 13

<em>Rewrite:</em> \frac{p}{-8} + 9 > 13

<em>Subtract 9 from both sides:</em> \frac{p}{-8}  > 4

<em>Move the negative (it is a fraction): </em>\frac{-p}{8} > 4

<em>Multiply both sides by 8:</em> -p > 32

<em>Times by -1 (-p -> -1p): </em>p > -32

<em>Flip the sign (multiplied by a negative): </em>p < -32

Hope this helps, have a nice day :D

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Answer:

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General Formulas and Concepts:

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