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
Yuki888 [10]
3 years ago
5

The 4 fifth-grade classrooms have a total of 29 boxes of expo markers. If the boxes are

Mathematics
2 answers:
ivanzaharov [21]3 years ago
8 0
Each classroom will receive 7 boxes
Vesnalui [34]3 years ago
6 0

Answer: 7 Boxes

Step-by-step explanation:

There are 4 classrooms and 29 boxes of markers. So, you would divide 29 by 4 which is 7.25. Then, you need to round it because you don't have a quarter of a box. So, each classroom will get 7 boxes.

I hope that helps!

You might be interested in
A classic rock radio station claims to play an average of 50 minutes of music every hour. However, it seems that every time you
tia_tia [17]

Answer:

a) 47.917-1.796\frac{2.811}{\sqrt{12}}=46.460    

47.917+1.796\frac{2.811}{\sqrt{12}}=49.374    

b) Null hypothesis: \mu =50

Alternative hypothesis: \mu \neq 50

And after analyze the interval obtained the upper limit not contains the value of 50, so then we can conclude that the claim is not satisfied for this case, and the population mean seems to be lower than 50 at 10% of significance.

Step-by-step explanation:

Previous concepts  

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

We have the following data: 44 49 45 51 49 53 49 44 47 50 46 48

And we can calculate the sample mean and deviation with the following formulas:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

s= \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}

And replacing we got:

\bar X= 47.917, s= 2.811

\mu population mean (variable of interest)  

n=12 represent the sample size  

Part a: Calculate the confidence interval

The confidence interval for the mean is given by the following formula:  

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)  

The degrees of freedom are given:

df= n-1= 12-1=11

Since the Confidence is 0.90 or 90%, the value of \alpha=0.1 and \alpha/2 =0.05, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,11)".And we see that t_{\alpha/2}=1.796

Now we have everything in order to replace into formula (1):

47.917-1.796\frac{2.811}{\sqrt{12}}=46.460    

47.917+1.796\frac{2.811}{\sqrt{12}}=49.374    

Part b

For this case the system of hypothesis are:

Null hypothesis: \mu =50

Alternative hypothesis: \mu \neq 50

And after analyze the interval obtained the upper limit not contains the value of 50, so then we can conclude that the claim is not satisfied for this case, and the population mean seems to be lower than 50 at 10% of significance.

6 0
3 years ago
Please help urgent thank you! and will give brainliest.
andrew11 [14]

Answer:

15 22 31 8

Step-by-step explanation:

i dont know  if wright

3 0
3 years ago
85 points!! | All of the following expressions have the same value, when x= -2 and y= 4, except
slavikrds [6]

Answer:

They have two sets of equal answers...

Step-by-step explanation:

-2 * 2 * 4 = -16

0 - 4 * -2 * -2 = -16

0 * -2 * -2 * 4 = 0

0 * 4 * 4 = 0

4 0
3 years ago
What is the commutative property?​
Brilliant_brown [7]

Answer:

The Commutative property states that order does not matter. Multiplication and addition are commutative.

Step-by-step explanation:

4 + 2 = 2 + 4

5 + 3 + 2 = 5 + 2 + 3

b + a = a + b

4 0
3 years ago
Read 2 more answers
Find the lengths of "x"
yanalaym [24]
Using pythagorean's theorem
a^2+b^2=c^2

a being 3 
b being 4
we'll get
9+16=25
where 5 is the hypotenuse and also c.
c^2 = 5^2
4 0
3 years ago
Other questions:
  • Please answer these 2 questions
    11·1 answer
  • 99 POINTS BRAINLIEST!! no fake answers please!
    10·2 answers
  • Can anyone help with this
    15·1 answer
  • What is the value of x in 6 - 4x = 7x - 9x + 10
    15·2 answers
  • The 5 staring members of the basketball team are lining up for a picture.How many different ways can the players be lined up for
    11·1 answer
  • 6x2-2x3+x4<br> Please help
    5·1 answer
  • Write a division number story with an answer of 3/5
    12·1 answer
  • A storage unit is cubical in shape. Each
    10·1 answer
  • A student is thinking of an approximate value for square root (67). What should her<br> answer be? *
    9·2 answers
  • Suppose the line y = 2.8333x - 22.4967 describes the relation between the​ club-head speed​ (in miles per​ hour), x and the dist
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!