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umka21 [38]
2 years ago
14

HELPPPPPPPPPP PLEASE ​

Mathematics
1 answer:
Vlad1618 [11]2 years ago
3 0

Answer:

a) 27. b) 8/3

This is your answer ☺️☺️☺️

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Karl’s math class is playing a number game. Each student is given a number card containing the numbers 1 to 6. The rules of the
Lena [83]

By finding the probability, we can expect that 2 out of the 30 students will win the prize.

<h3>How many of the 30 students will win the prize?</h3>

First, we should get the probability of winning this game.

Here the students select two numbers out of 6, just to make the calculations let's say that these numbers are 1 and 2.

Now, we need to get these two numbers in two balls. The probability of getting the ball with the number 1 out of the 6 balls is:

p = 1/6

The probability of getting the ball with the number 2 out of the remaining 5 balls (because we already got one) is:

q = 1/5

The joint probability is then:

P = 2*(1/6)*(1/5) = 1/15.

Where the factor 2 comes to take in account the permutations, for the case where we first draw the number 2 and then the number 1.

Then the expected number of students that will win is equal to the probability times the total number of students:

(1/15)*30 = 2

So out of the 30 students, we can expect that 2 will win.

If you want to learn more about probability:

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8 0
2 years ago
Emma drank 1/4 of a milk shake in 1/10 of an hour. how many minutes will it take her to drink a full milk shake
Kay [80]
The problem gives you the time in hours, but you're looking for your answer in minutes so change 1/10 of an hour to minutes first. To do this, multiply 1/10 by 60 to get 6 minutes. Since there are 4 quarters in a whole, multiply 6*4. It would take her 24 minutes to drink the whole shake
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Which graph shows a function with a zero of –5?
Vedmedyk [2.9K]

Answer:

Look for the y-intercept where the graph crosses the y-axis. Look for the x-intercept where the graph crosses the x-axis. Look for the zeros of the linear function where the y-value is zero.

Step-by-step explanation:

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Step by step explanation
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Tpy6a [65]

Answer:

(3+2)x - 4x

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I just converted the words, turned them to operations and that's it!

Hope this helps! :D

- Anna

8 0
3 years ago
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