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
ehidna [41]
3 years ago
14

Mrs.Douglas wanted to give each of her students 3 fancy pencils. She has 20 students. If fancy pencils come in packs of 12, how

many packs does she need to purchase so that all of her students get their pencils?
Mathematics
2 answers:
Alex3 years ago
4 0
20* 3 = 60 total pencils
60/12= 5 packs
Colt1911 [192]3 years ago
3 0
1 pack of 12 will give 4 students their pencils. 20/4 = 5
You might be interested in
A math class has a total of 31 students. The number of females is seven less than the number of meals. How many miles and how ma
Nadusha1986 [10]

Answer:

Male-19&Female-13

Step-by-step explanation:

See the image for solution

Hope it helps

Have a great day

3 0
3 years ago
Which of the following relations is a function?
ella [17]
From my work I believe it should be the third one. 
4 0
3 years ago
56 1/4% in simplest form. don't understand how to do it
Illusion [34]
I'd turn the fraction into a decimal. 56.25% but the answer in simplest form is <span>-5/7(2/5). i hope this helped you. :)</span>


5 0
3 years ago
Read 2 more answers
A sports news station wanted to know whether people who live in the North or the South are bigger sports fans. For its study, 17
Free_Kalibri [48]

Using the z-distribution, it is found that the 95% confidence interval for the difference is (-1.3, -0.7).

<h3>What are the mean and the standard error for each sample?</h3>

Considering the data given:

\mu_S = 3.8, n = 175, s_S = \frac{1.7}{\sqrt{175}} = 0.1285

\mu_N = 4.8, n = 152, s_N = \frac{1.2}{\sqrt{152}} = 0.0973

<h3>What is the mean and the standard error for the distribution of differences?</h3>

The mean is the subtraction of the means, hence:

\overline{x} = \mu_S - \mu_N = 3.8 - 4.8 = -1

The standard error is the square root of the sum of the variances of each sample, hence:

s = \sqrt{s_S^2 + s_N^2} = \sqrt{0.1285^2 + 0.0973^2} = 0.1612

<h3>What is the confidence interval?</h3>

It is given by:

\overline{x} \pm zs

We have a 95% confidence interval, hence the critical value is of z = 1.96.

Then, the bounds of the interval are given as follows:

  • \overline{x} - zs = -1 - 1.96(0.1612) = -1.3
  • \overline{x} + zs = -1 + 1.96(0.1612) = -0.7

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
Dae-Hyun drew a picture of a cruise ship that he saw docked at Port Canaveral. He used the scale shown below.
madreJ [45]

Answer: 592

Step-by-step explanation:

I did the test and i got it right :)

4 0
3 years ago
Other questions:
  • Please help with math problem
    8·2 answers
  • I need to know theater answer
    7·1 answer
  • A cylinder shaped storage tank has a radius of (x+5) metres and a height of x metres. Determine the dimensions (round to two dec
    8·1 answer
  • I need this answers asap​
    15·1 answer
  • Help me plz tgbdsfvg
    9·2 answers
  • 4/7 is subtracted from a positive number and the result is multiplied by 7 to obtain the original number. What is the number?
    13·1 answer
  • The equation of the line of best fit is y=15.621x+8.83 Based on the line of best fit, Approximately how many pages are predicted
    6·1 answer
  • Suppose you are determining the growth rate of two species of plants. Species A is 12 cm tall and grows 2 cm per month. Species
    8·1 answer
  • One-fourth of the sum of 2p and 11
    10·1 answer
  • a right rectangular prism has a length of 10 centimeters, a width of 2.5 centimeters and a height of 0.9 centimeters. what is th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!