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pochemuha
3 years ago
15

24 students bought their permission slips to attend the class field trip to the local art museum. If this represented 8 tenths o

f the class, how many students are in the class?
Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
8 0

Answer:

There are 30 students in the class.

Step-by-step explanation:

8/10 = 24

1/10 = 24/8 = 3

1 = 10/10 = 3 * 10 = 30

Sergio039 [100]3 years ago
6 0

Answer:

30 in the class as total. 24/3= 8 30/3 =10

Step-by-step explanation:

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How would you graph 10<=20 on a number line graph
ValentinkaMS [17]

Answer:

you would put a point on 10 then an arrow up to 20

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A package contains 12 resistors, 3 of which are defective. If 4 are selected, find the probability of getting
s344n2d4d5 [400]

Answer:

Incomplete question, but I gave a primer on the hypergeometric distribution, which is used to solve this question, so just the formula has to be applied to find the desired probabilities.

Step-by-step explanation:

The resistors are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

12 resistors, which means that N = 12

3 defective, which means that k = 3

4 are selected, which means that n = 4

To find an specific probability, that is, of x defectives:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = x) = h(x,12,4,3) = \frac{C_{3,x}*C_{9,4-x}}{C_{12,4}}

7 0
3 years ago
Which equation models the trend line?
sattari [20]

Answer:

bhjhhskhghkhgjyg

Step-by-step explanation:

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4 0
3 years ago
4.
Roman55 [17]
Part A:What percentage of the total students surveyed like both watching television and reading?

The total amount of student is 230
The amount of students that like to read and watch television is 80

As a fraction it is 80/230
Turn that to a percentage
It is:34.7826%

Part A=34.7826%

Part B:What is the probability that a student does not like watching television also does not like reading?

On the table it shows 20

So the probability is 20/230

Part B=20/230

6 0
2 years ago
PLEASE HELP!
san4es73 [151]
1/2x + 1 = 2/3x
1/2x - 2/3x = -1
-x/6 = -1
x = 6

Hope this helps!
7 0
3 years ago
Read 2 more answers
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