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
inessss [21]
3 years ago
5

So far, 18 of the 25 students in your class have turned in field trip permission slips. What percent of your classmates have tur

ned in permission slips?
Mathematics
2 answers:
zimovet [89]3 years ago
5 0
72% of the students had turned in the permission slips.
aleksklad [387]3 years ago
3 0

Solution:

we are given in the problem that

So far, 18 of the 25 students in your class have turned in field trip permission slips.

we have been asked to find

What percent of your classmates have turned in permission slips?

Required Percentage=\frac{18}{25}*100\\

Simplify we get

Required Percentage=\frac{18}{25}*100=18*4=72\\

Hence 72% percent of your classmates have turned in permission slips.

You might be interested in
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customer
AlladinOne [14]

Answer:

4-2.326\frac{1}{\sqrt{100}}=3.767    

4+2.326\frac{1}{\sqrt{100}}=4.233    

So on this case the 98% confidence interval would be given by (3.767;4.233)

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".

\bar X=4 represent the sample mean

\mu population mean (variable of interest)

\sigma=1 represent the population standard deviation

n=100 represent the sample size  

Solution to the problem

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

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

Since the Confidence is 0.98 or 98%, the value of \alpha=0.02 and \alpha/2 =0.01, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.01,0,1)".And we see that z_{\alpha/2}=2.326

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

4-2.326\frac{1}{\sqrt{100}}=3.767    

4+2.326\frac{1}{\sqrt{100}}=4.233    

So on this case the 98% confidence interval would be given by (3.767;4.233)

   

4 0
3 years ago
Jorge bought a crate of floor tiles for $95.94.The Crate had six boxes of floor tiles.Each Box contained 20 floor tiles.Write an
Natasha_Volkova [10]

Answer:Cost per box: $95.94 ÷ (b)

            Cost per tile: [$95.94 ÷ (b)]÷ (t)

First, we are trying to find the cost of each crate. Since the whole order was $95.94, we have to divide. The answer to the cost per box is $15.99.

Second, we are trying to find the cost of each of the tiles in the crates. Since they are in each crate, we divide the crate price from the tiles. The answer of the cost per tile is $.80.

Hope this helped you out!

6 0
3 years ago
C<br> On Wednesday they made $5.50 How much does Zara get?<br><br> Please help?
Natalija [7]

Answer

Zara gets $5.50

Step-by-step explanation:

7 0
2 years ago
Show each step of your work.<br><br> Solve -3x – 2 = 19.
IgorLugansk [536]

Answer:

Step-by-step explanation:

-3x -2 = 19

+3x +3x

-2 = 19 + 3x

-19 -19

-21 = 3x

Divided by 3

-7 = x

5 0
3 years ago
How do i solve 0.074 x n equals 74
Serhud [2]
0.074n = 74
multiply both sides by 1000 to make the process simpler
74n = 74000
divide both sides by 74
n = 1000
3 0
3 years ago
Read 2 more answers
Other questions:
  • Draw or write to explain why one hundred 4 ten and 14 ten name the same amount
    13·1 answer
  • List S and list T each contain 5 positive integers, and for each list the average (arithmetic mean) of the integers in the list
    8·1 answer
  • Fred had 264 books in his personal library. He donated 2/11 of these books to the public library. How many books did he donate?
    13·2 answers
  • Please answer I will give you brainliest!!! Find the angles of the rhombus if the ratio of the angles formed by diagonals and th
    10·1 answer
  • The base of a rectangular prism has an area of 13 2/3, and the height of the prism is 8 5/6. What is the volume of the prism? Be
    10·1 answer
  • Simplify, following the order of operations: 23 + 5 × 10 ÷ 2 – 33 + (11 – 8)
    12·1 answer
  • How is 1.479 a rational number​
    5·1 answer
  • Need help. Please show work.
    12·1 answer
  • The Steelers have won 6 out of their 8
    13·1 answer
  • What is the solution set for
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!