1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksana_A [137]
3 years ago
15

The double number line below shows the number of students in Mr. Fulton's class. It shows the number of students that represents

$40 of students in Mr. Fulton's class
Mathematics
1 answer:
Lisa [10]3 years ago
7 0

Answer:

100% = 30. There are 30 students in Mr.Fulton's class

Step-by-step explanation:

If we have 12 as 40%, we divide it by 2 to get the base value which is 6=20%.

Now we multiply the base by 5 so 20% x 5= 100% and 6 x 5 equals 30. so 100% = 30

<h2>MARK BRAINLIEST, I AM WORKING TWOARDS AN ACHIVMENT!</h2>
You might be interested in
Plz Help...What is the square root of 1,249?
hichkok12 [17]

Answer:

35.34

Step-by-step explanation:

8 0
3 years ago
Find the common ratio, the 8th term, the explicit formula, the recursive formula, and the three terms in the sequence after the
skad [1K]

Answer:

I am also truly sorry

Step-by-step explanation:

6 0
3 years ago
SOMEONE PLS HELP ASAP
harkovskaia [24]
42---number of students with blue eyes blond hair
5--students with grey eyes brown hair 
6--difference of the number of students with grey eyes and brown hair ...
14-- with the last one standing
5 0
3 years ago
Read 2 more answers
Is it possible for two different numbers, when squared, to give the same result? What does this result tell you about solving an
Marizza181 [45]
Let x,y be two different numbers
suppose x^2=y^2
then x^2-y^2=0
which yields (x+y)(x-y)=0
so either x=y or x=-y
In any case, x and y must be the same value
also when a vairable is squared like y=x^2
we must note that there are 2 possible solutions
x=(+/-)sqrt(y)
7 0
3 years ago
A charity receives 2025 contributions. Contributions are assumed to be mutually independent and identically distributed with mea
uysha [10]

Answer:

The 90th percentile for the distribution of the total contributions is $6,342,525.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For sums of size n, the mean is \mu*n and the standard deviation is s = \sqrt{n}*\sigma

In this question:

n = 2025, \mu = 3125*2025 = 6328125, \sigma = \sqrt{2025}*250 = 11250

The 90th percentile for the distribution of the total contributions

This is X when Z has a pvalue of 0.9. So it is X when Z = 1.28. Then

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

1.28 = \frac{X - 6328125}{11250}

X - 6328125 = 1.28*11250

X = 6342525

The 90th percentile for the distribution of the total contributions is $6,342,525.

3 0
2 years ago
Other questions:
  • How do you find the cot θ if csc θ = square root of five divided by two and tan θ &gt; 0.
    9·1 answer
  • What is the simplest fraction for 57/76?
    10·1 answer
  • If 90 people attend a concert and tickets for adults cost $2.5 while tickets for children cost $2.25 and total receipts for the
    12·1 answer
  • What is the answer to this
    7·2 answers
  • ?? i have to present this to my class tomorrow and i’m not confident lol
    12·2 answers
  • 28 beats in 4 seconds how many beats in 30 seconds
    11·1 answer
  • A typical tip in a restaurant is​ 15% of the total bill. If the bill is ​$100​, what would the typical tip​ be
    6·1 answer
  • There are three silver bows for every four red bows in a bag. what is the ratios?
    5·2 answers
  • Problem 4
    8·2 answers
  • Will give BRAINLIEST
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!