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zloy xaker [14]

2 years ago

12

Liam has a bag of b beads. He gives 20 beads to his sister. He then makes 4 necklaces with the same number of beads on each neck

lace using all of the remaining beads. Write an expression that represents the number of beads on each necklace. Show your work.

2 answers:

Vlada [557]2 years ago

6 0

Answer:

5

Step-by-step explanation:

5 beads 5 beads rjejejejrjebrnrbrbrvrvtvrctvtgrvrgrhwhw so so rip so so all all so well dl do so do to

Art [367]2 years ago

6 0

Answer:

5

Step-by-step explanation:

<h3>just do 20 divided by 4 and you will get 5. Also, do 5x4 to make sure you let your teacher know that you got the right answer.</h3>

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The expected number of typographical errors on any page of a certain magazine is 0.2. What is the probability that a certain pag

zhuklara [117]

Answer:

The probability of 2 or more errors is 0.018.

Step-by-step explanation:

Let <em>X</em> = number of typographical errors on a page of a certain magazine.

The expected number of errors is, <em>λ</em> = 0.2.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 0.2.

The probability mass function of <em>X </em>is:

$P(X=x)=\frac{e^{-0.2}0.2^{x}}{x!};\ x=0,1,2,3...$

Compute the probability of 2 or more errors as follows:

P (X ≥ 2) = 1 - P (X < 2)

= 1 - P (X = 0) - P (X = 1)

$=1-\frac{e^{-0.2}0.2^{0}}{0!}-\frac{e^{-0.2}0.2^{1}}{1!}\\=1-0.81873-0.16375\\=0.01752\\\approx0.018$

Thus, the probability of 2 or more errors is 0.018.

5 0

2 years ago

Find the simple interest on $6000 from 16 May 2010 to 9 October 2010 at 10 percent per annum

omeli [17]

Answer:

$240.02

Step-by-step explanation:

10% per year means "how much percent per day?"

We need to divide 10 by 365 since there are 365 days in a year. Hence,

$\frac{10}{365}=0.0274$

So, that is 0.0274% per day

In decimal, we have to divide this percentage by 100, so, that is:

0.0274/100 = 0.000274

Daily interest on the principal is thus the multiplication of this value with principal (6000), that is:

0.000274 * 6000 = 1.644

<u>For how many days??</u>

From 16 May till 9 October would be:

16 May - 31 May = 15 days

1 June - 30 June = 30 days

1 July - 31 July = 31 days

1 Aug - 31 Aug = 31 days

1 Sep - 30 Sep = 30 days

1 Oct - 9 Oct = 9 days

Total Days is 15 + 30 + 31 + 31 + 30 + 9 = 146 days

Thus, total simple interest for 146 days would be:

1.644 * 147 = $240.02

8 0

2 years ago

An error occured while editing the question<br>Your question must be between 20 and 5000 characters

Rom4ik [11]

Well maybe you need to redo the question

8 0

2 years ago

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Find the 14th term of the geometric sequence 7, 28, 112, ...

bixtya [17]

Answer: five people like to like 5 people

Step-by-step explanation:

7 0

2 years ago

This table represents a quadratic function. x y 0 -3 1 -3.75 2 -4 3 -3.75 4 -3 5 -1.75 What is the value of a in the function’s

serg [7]

Answer:

a = 0.25

Step-by-step explanation:

Our strategy to solve this problem will be to use the information given in the table to obtain first the value of c in the quadratic equation which has the form ax^2 + bx + c and then form a system of 2 linear equations and solve for the coefficients a and b as follow:

from x=0 and y=-3 a*0 + b* 0 + c = - 3

c = -3

from x=1 and y= -3.75

a*(1) + *(1) + (-3) = -3.75

a + b = -3.75 + 3 = -0.75

from x= 2 and y = -4

a* (2)^2 + b*(2) + (-3) = -4

4a + 2b = -4 +1

4a + 2b = -1

Now we can solve the system f equations by elimination:

a + b = -0.75

4a + 2b = -1

multiply first equation by -2 and add to the second and get

-2a - 2b = +1.50

4a + 2b = -1

2a = 0.50 and substituting into any of the equations get b = -1

so the quadratic equation has a= 0.25 b= -1 c= -3

we can even plug the any of the other values for x given in the table and check the answer.

8 0

2 years ago

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