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
erik [133]
3 years ago
8

A university has 28,980 students. In a random sample of 180 students, 12 speak three or more languages. Predict the number of st

udents at the university who speak three or more languages. The expected number of students at the university who speak three or more languages is .
Mathematics
1 answer:
anygoal [31]3 years ago
5 0
Word | know | Unknown
Language| 12 | x
Total | 180 | 28980
Use cross multiply:
12(28980) = 180(x)
347760 = 180x
347760/180=1932
You might be interested in
Nicola buys a bouquet of 8 sunflowers for $18 What is the cost of 1 sunflower?
Sever21 [200]

Answer:

$2.25

Step-by-step explanation:

Divide the cost ($18) by the amount of flowers (8.)


7 0
3 years ago
A study of commuting times reports the travel times to work of a random sample of 1010 employed adults in Chicago. The mean is x
MrMuchimi

Answer:

standard error of the mean = 1.6960

Step-by-step explanation:

Given -

Mean (\overline{X}) = 53 minutes

Standard deviation ( s ) = 53.9 minutes

n = 1010

standard error of the mean  =  

\sigma _{\overline{X}}    =   \frac{s}{\sqrt{n}}

        = \frac{53.9}{\sqrt{1010}}

       =  1.6960

3 0
3 years ago
The Martin family's truck gets an average of 25 miles per gallon. Predict how many miles they can drive using 7 gallons of gas.
victus00 [196]
I believe they can drive 3.57 miles.
8 0
2 years ago
Read 2 more answers
4. Stephanie breaks on average 1.5 pencils every school day. How many pencils can she expect to break in a week (5 days)?
olya-2409 [2.1K]

Answer:

7.5 pencils broken in a week (5 days).

Step-by-step explanation:

1.5 pencils broken a day

Now we just multiple this by 5 for each of the school day's.

1.5 pencils * 5 days = 7.5 pencils broken in a week.

Have a nice day! :)

Please mark this answer as brainiest!

7 0
2 years ago
Encuentre la suma: 564 + 3,598 =?<br> 3,034<br> 4,052<br> 4,162<br> 9,238
Scrat [10]
The answer is 4,162 for 564+3,598
5 0
3 years ago
Other questions:
  • The factorization of x^2 + 3x-4 is modeled with algebra tiles
    6·1 answer
  • I need help please can someone help me !!!!!!
    13·1 answer
  • What is the answer too this <br> (3x+3)(x+4)
    14·1 answer
  • Mary is a scientist. Using a microscope, she looks at a salt crystal and discovers it is shaped like a cube. Each square face ha
    9·1 answer
  • On a gameboard spinner, Rachel won a prize on 8 out of 10 spins. Based on experimental
    6·1 answer
  • Help please will mark!! Melissa the trainer has two solo workout plans that she offers her clients: Plan A and Plan B. Each clie
    10·1 answer
  • What are the square roots of 64144?
    12·2 answers
  • PLEASE SHOW YOUR WORK. HURRY I WILL MARK YOU BRAINLIEST
    5·2 answers
  • Need answers quickly!
    15·1 answer
  • Question 5 of 27Three buildings in a town are mapped on a coordinate grid, The Cinema is located at (-4,8), the Museum is locate
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!