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
Vera_Pavlovna [14]
3 years ago
6

Half of the students in Max's class volunteer at the local community center. Fifteen students do not volunteer. If there are 12

boys in max's class, how many girls are in his class?
Mathematics
1 answer:
zzz [600]3 years ago
6 0
I am guessing 28 :-)
You might be interested in
if tom spins the spinner 80 times work out an estimate for the number of times the spinner will land on 3 please help me
NNADVOKAT [17]

Answer:

The estimated number of times the spinner will land on 3 is 20.

Step-by-step explanation:

The complete question is:

A four-sided spinner is provided. If Tom spins the spinner 80 times then work out an estimate for the number of times the spinner will land on 3.

Solution:

Assume that the four-sided spinner is unbiased.

That is all the four outcomes are equally likely to be selected.

The probability that the spinner lands on any of the four numbers is:

P(1) = P (2) = P (3) = P (4) = 0.25

It is provided that Tom spins the spinner <em>n</em> = 80 times.

The spinner can land on any of the four numbers independently.

The random variable <em>X</em>, defined as the number of times the spinner lands on 3, follows a Binomial distribution with parameters <em>n</em> = 80 and <em>p</em> = 0.25.

The expected value of <em>X</em> is:

E(X)=np

        =80\times 0.25\\=20

Thus, the estimated number of times the spinner will land on 3 is 20.

7 0
3 years ago
Write a division equation with a answer of 42,What is one I could write???
mrs_skeptik [129]
You could say 84/2, 126/3, or even 168/4
4 0
3 years ago
PLAESE HELP ASAP!!!!
vovikov84 [41]
11 5/8 + 9 1/2= 21 1/8
3/4 - 2/5= 7/20
4 5/6 - 2 1/2= 2 1/3
I think these are right, I apologize if they are wrong.
5 0
3 years ago
Read 2 more answers
What's 7% of 24,678?
Anuta_ua [19.1K]
U just do 24,678 * .07 to get <span>1727.46</span>
4 0
4 years ago
What substitution should be used to rewrite 4x^4-21x^2+20 =0 as a quadratic equation
marysya [2.9K]

I would substitute y = x^2

4y^2 -21y+20=0

7 0
3 years ago
Other questions:
  • Solve for the indicated variable. Include all of your work in your answer. Submit your solution. P = 3r + 2s; for s.
    14·1 answer
  • What is the relationship between a triangle and a square?<br> Not numbers OK!!!!!!! Please help me
    10·1 answer
  • What fraction of 1 litre is 10 millilitres
    11·1 answer
  • 162 water bottles in 9 cases
    11·1 answer
  • The solution to (d+4)^2=9 is D=
    14·2 answers
  • I need help in this!
    15·1 answer
  • Find x.<br><br><br><br> 1.5<br> 2<br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7B3%7D" id="TexFormula1" title="\sqrt{3}" alt="\
    13·1 answer
  • If a normally distributed population has a mean (mu) that equals 100 with a standard deviation (sigma) of 18, what will be the c
    6·1 answer
  • What expression is the opposite of (c - d)?
    12·1 answer
  • Brainiest to whoever right
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!