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
Anastasy [175]
2 years ago
11

Adozen of notebooks cost Rs 480. How Much will 7 note book cost? ​

Mathematics
2 answers:
Savatey [412]2 years ago
8 0

Answer: Rs 280

A dozen = 12

12 notebooks --> Rs 480

1 notebooks --> 480/12 =Rs 40

7 notebooks --> 40 * 7 = Rs 280

iVinArrow [24]2 years ago
7 0

\huge{\underline{\underline{\boxed{\sf{\orange{ αηѕωєя : }}}}}}

  • A Dozen Notebooks Cost 480

We Know That There is 12 items in one Dozen.

  • So we know that cost of 12 Notebooks is 240.

Let's Solve~

  • 12 Notebooks = 480

  • 1 Notebook = 480/12

  • 1 Notebook = 40

So, 7 Notebooks = 7 × 40

  • 7 Notebooks = 280

Hope It's Helps~

You might be interested in
Solve. x – 6 = 14 – 8 0 12 20 –12
lana [24]
The answer is 12 because first we have to simplify 14-8 to 6 so it will be
x-6=6
Then add 6 to both sides lastly simplify 6+6 to 12
So x=12
7 0
3 years ago
PLS HELP!!
qwelly [4]
Its the third pair of inequalities

b  26 < n < 30

so n = 28 

the 3 numbers are 28, 30 and 32
4 0
2 years ago
Read 2 more answers
Stealth Bank has deposits of $700 million. It holds reserves of $70 million and has purchased government bonds worth $215 millio
zhannawk [14.2K]

Answer:

$75 million

Step-by-step explanation:

Given that:

Reserve value = $70 million

Purchased government bond = 215 million

Market value of loan = $490 million

Net worth :

Assets - liability

Assets = (Market value of loan + purchased government bond + reserve value)

(490 million + 215 million + 70 million)

275 million + 70 million

= $775 million

Liability = Deposits = $700 million

Net worth = ($775 - $700) million

Net worth = $75 million

4 0
2 years ago
For each given p, let ???? have a binomial distribution with parameters p and ????. Suppose that ???? is itself binomially distr
pshichka [43]

Answer:

See the proof below.

Step-by-step explanation:

Assuming this complete question: "For each given p, let Z have a binomial distribution with parameters p and N. Suppose that N is itself binomially distributed with parameters q and M. Formulate Z as a random sum and show that Z has a binomial distribution with parameters pq and M."

Solution to the problem

For this case we can assume that we have N independent variables X_i with the following distribution:

X_i Bin (1,p) = Be(p) bernoulli on this case with probability of success p, and all the N variables are independent distributed. We can define the random variable Z like this:

Z = \sum_{i=1}^N X_i

From the info given we know that N \sim Bin (M,q)

We need to proof that Z \sim Bin (M, pq) by the definition of binomial random variable then we need to show that:

E(Z) = Mpq

Var (Z) = Mpq(1-pq)

The deduction is based on the definition of independent random variables, we can do this:

E(Z) = E(N) E(X) = Mq (p)= Mpq

And for the variance of Z we can do this:

Var(Z)_ = E(N) Var(X) + Var (N) [E(X)]^2

Var(Z) =Mpq [p(1-p)] + Mq(1-q) p^2

And if we take common factor Mpq we got:

Var(Z) =Mpq [(1-p) + (1-q)p]= Mpq[1-p +p-pq]= Mpq[1-pq]

And as we can see then we can conclude that   Z \sim Bin (M, pq)

8 0
3 years ago
Help! Brainliest to correct.
e-lub [12.9K]
The awnser would be c
8 0
2 years ago
Read 2 more answers
Other questions:
  • Whats the answer to thos because its hard
    7·1 answer
  • 983488 divided by 1188. What's the remainder? DON'T USE A CALCULATOR!! NO DECIMALS!
    6·2 answers
  • If a well pumps at a rate of 8.4 gal per minute, how long would it take to fill the tank described above?
    6·1 answer
  • 3p - 1 = 5(p - 1) - 2(7 - 2p)<br><br> A. 3 <br> B. 0 <br> C. -9 <br> D. -10
    14·1 answer
  • As you were in a hurry to catch a flight, you picked two out of your four credit cards at random, without even looking. One of t
    15·1 answer
  • Someones answer q3 ill mark as brainliest pleaseee
    14·1 answer
  • What property is this? -5 + 5 = 0
    7·1 answer
  • I don’t understand the problem or question
    6·1 answer
  • I’ll give brainliest please help ASAP:)
    5·1 answer
  • Make y the subject of this formulae X=a-2by^2
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!