Lucia le cuenta una noticia a 3 amigas a la hora 12. Cada una de ellas se le comunica a 3 personas en los siguientes 10 minutos. Si este procedimiento continua cuantas personas se han enterado de la noticia hasta las 12:30?

Answers

Answer 1

Answer:

81 personas

Step-by-step explanation:

Lucía les cuenta una historia a 3 amigos a la hora 12.

Cada uno de ellos se comunica a 3 personas en los próximos 10 minutos.

a) Primeros 10 minutos

1 amigo = 3 personas = 10 minutos

3 amigos = x

Multiplicar cruzada

x = 3 × 3 personas = 9 personas

Por lo tanto, 9 personas han escuchado la historia en 10 minutos.

Si este trámite continúa, ¿cuántas personas han escuchado la noticia hasta las 12:30?

12: 30 - 12:00 = 30 minutos más

10

Por eso,

b) Segundos 10 minutos = 20 minutos

9 personas cada uno le dice a 3 personas en otros 10 minutos

1 persona = 3 personas

9 personas = x

Multiplicar cruzada

x = 9 × 3 personas

x = 27 personas

c) Los últimos 10 minutos = 30 minutos

1 persona = 3 personas

27 personas = x

Multiplicar cruzada

x = 27 × 3 personas

x = 81 personas

Por lo tanto, a los 30 minutos, 81 personas habrían escuchado la noticia a las 12:30


Related Questions

two cards are drawn from a shuffled deck of 52 cards. what is the probability that the first card is a king and the second is a heart

Answers

On solving the provided question, we can say that the required probability is = 13/204.

What is probability?

Probability theory, a subfield of mathematics, gauges the likelihood of an occurrence or a claim being true. An event's probability is a number between 0 and 1, where approximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A probability is a numerical representation of the likelihood or likelihood that a particular event will occur. Alternative ways to express probabilities are as percentages from 0% to 100% or from 0 to 1. the percentage of occurrences in a complete set of equally likely possibilities that result in a certain occurrence compared to the total number of outcomes.

probability of 1st card =  1/4

since the card is not replaced

total number remaining cards = 51

second card 13/51

the required probability is = 13/204

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PLS HELP 30 POINTS+BRAINLIEST!!
The __________ is the layer of the atmosphere nearest to Earth's surface.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

The __________ contains the highest concentration of ozone.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

The _________ protects the earth from meteoroids.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

The _________ layer is the coldest layer in the atmosphere.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

Most weather occurs in the _________.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere
The __________ the atmospheric layer farthest from Earth.
A. exosphere
B. troposphere
C. stratosphere
D. mesosphere

Answers

B: Troposphere
C: Stratosphere
D: Mesosphere
D: Mesosphere
B: Troposphere
A: Exosphere

How many variable terms are in the expression 3x3y 5x2 Y 9?

Answers

The variable terms in the expression 3[tex]x^{3}[/tex]y + 5[tex]x^{2}[/tex] + y + 9 are [tex]x^{3}[/tex]y, [tex]x^{2}[/tex], and y.

The expression provided is

3[tex]x^{3}[/tex]y + 5[tex]x^{2}[/tex] + y + 9

In the expression, each variable is represented by a letter.

Let's look at the variables for each term.

The variable in the first term, 3[tex]x^{3}[/tex]y, is [tex]x^{3}[/tex]y.

The variable in the second term, 5[tex]x^{2}[/tex] , is [tex]x^{2}[/tex] .

Y is the variable in the third term.

There is no variable in term 9's final equation.

The variables in the expression are [tex]x^{3}[/tex]y, [tex]x^{2}[/tex] , and y.

As a result, the variables [tex]x^{3}[/tex] and y are the variable terms.

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Can someone help me with this?

Answers

9514 1404 393

Answer:

  see below

Step-by-step explanation:

The red numbers are the ones that are given in the problem text. The blue numbers are calculated so as to make row and column totals come out properly.

The drink total shows the same number is arrived at either of two ways. This is confirmation that the other numbers are calculated properly.

Write an equation in slope-intercept form for the line that passes through the given
point and is perpendicular to the graph of the equation.


24. (−5, 2), y = ¹⁄2x − 3

Please explain how to get the answer too.

Answers

Answer:

Step-by-step explanation:

perp. -2

y - 2 = -2(x + 5)

y - 2 = -2x - 10

y = -2x - 8

Ervin scores half as many points in a game as Larry. If Larry scored x points, how many points did Larry score if Ervin scored 16?

Answers

The score of Larry is 32 points.

What is an equation?

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Given:

Ervin scores half as many points in a game as Larry.

If Larry scored x points,

then the points of Ervin are x/2 points.

Here, x = 16,

So,

Ervin's points = Larry's points

The equation is,

16 = x/2

x = 16(2)

x = 32 points

Therefore, 32 points are the score of Larry.

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how do i answer this q

Answers

Answer: -1/4

Step-by-step explanation:

Rate of change is just another term for slope. To calculate slope, we just need any 2 points on the graph and apply the formula [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]m=\frac{1-2}{4-0} =\frac{-1}{4} =-\frac{1}{4}[/tex]

This means -1/4 is the rate of change.

Omar rides the train and ferry to visit his uncle the train ticket cost $42. The train ticket cost 7 times as much as the ferry tickets. How much does the ferry tickets cost

Answers

The ferry tickets cost $6.
If the train ticket is 7x as much as the ferry ticket, divide 42 by 7

Answer:

6

Step-by-step explanation:

There are 4 pizzas and 3 people.
How much would each person get if each person eats the same amount?
A. 1 3/4
B. 2/3
C. 1 1/3
D. 3/4
E. 1 1/2

Answers

Answer:

The answer will be C

Step-by-step explanation:

A regular heptagon has a radius of approximately 27.87 cm and the length of each side is 24.18 cm. What is the approximate area of the heptagon rounded to the nearest whole number

Answers

Rounded to the nearest whole number, the approximate area of the heptagon is 555 sq cm.

A heptagon is a seven-sided polygon. To find the area of a regular heptagon, we can use the formula:

Area = (7/4) * (perimeter) * (apothem)

where "perimeter" is the length of the heptagon's circumference and "apothem" is the distance from the centre to the midpoint of one of its sides. The radius of the heptagon is the apothem, which is 27.87 cm.

The perimeter of the heptagon can be calculated by multiplying the length of one side by the number of sides:

Perimeter = 24.18 cm * 7 = 168.26 cm

Now we can substitute these values into the area formula:

Area = (7/4) * 168.26 * 27.87

Area = approximately 554.55 sq cm.

Rounded to the nearest whole number, the approximate area of the heptagon is 555 sq cm.

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A triangle has sides with lengths of 33 kilometers, 90 kilometers, and 97 kilometers. Is it a right triangle?

Answers

no it is not a right triangle because when using the pythagorean theorem the two legs 33 and 90 do not add up to 97

33^2 + 90^2 ≠ 97^2

please help me i have a 33 in algebra rn

Answers

Sorry i cant help, but don’t trust that link!! Its a virus!

HELP! (25 POINTS AND CROWN FOE THE RIGHT ANSWER!!)

Answers

Substitute x=3y-7 into the second equation to solve for y.

x=3y-7

Substitution Property of Equality:

y=(3y-7)+1

Solve for y - combine like terms:

-7+1=-6:

y=3y-6

Subtract 3y from both sides:

y-3y=-6

-2y=-6

Divide both sides by -2:

-2y/-2=-6/-2

y=3

Now, let’s plug y=3 back into the first equation to solve for x:

x=3(3)-7

x=9-7

x=2

So, the solution is: (2, 3)

What is the quotient?

Answers

When you divide by numbers with the same base, the exponents subtract
Therefore: 5^-6/5^3 = 5^-6-3
5^-9 = 1/5^9

Solution: A
The answer to your question is the first option.

Identify a method of developing systems that is well-suited to traditional project management tools and technique

Answers

The waterfall model has equivalent flexibility to other approaches. suitable for conventional project management tools and methods.

The waterfall model of the software development life cycle is the greatest technique for creating systems.

This includes the following elements:

1. The requirements phase, which takes into account the needs needed to build the product

2. The product's design is created

3. The programmers who wrote the code to put the product into action built the product.

4. The product is examined and all flaws are fixed to ensure that it responds correctly to inputs.

5. The systems are periodically maintained to ensure continued operation and proper output

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The area of the rectangle is 15cm, the length is xt2cm, the width is xcm , find the value of x​

Answers

You now have the total length for the remaining 2 sides. This number divided by 2 is the width.

How do you find the length and width of a rectangle when given the area?

When given an area of A and a length of h, its width w is equal to A/h.

Its width is w = P/2h if you have the perimeter P and length h.

If you know the length h and the diagonal d, you can calculate the width using the formula w = (d2h2).

The height, area, diagonal, or perimeter of your rectangle are the two measurements that the width of a rectangle calculator uses to calculate the width of your rectangle. We'll also demonstrate various formulas for calculating the width of a rectangle based on the information at hand. The width of a rectangle can be determined in a variety of ways, depending on the information at hand. 

A=w×h

P=(w+h)×2

d = w 2 +h 2

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29. Jamie spent $56 for blue blouse. A red blouse cost two-thirds of this price. What was the cost of the red blouse? PLEASE HELP ME WITH THIS QUESTION MY MATH TEACHER WILL BE VERY UPSET PLEASEEE!!!​

Answers

37.333 repeating because 3 divided by 56 is 18.666 repeating so that multiplied by 2 is 37.333
2/3 of 56 is 37.3 repeating

Vitamin C comes in pills with a strength of 500 mg. How many pills would you need to take if you want a dosage of two grams?

Answers

Answer:

4 pills

1

Step-by-step explanation:

Mr. Starnes and his wife have 6 grandchildren: Connor, Declan, Lucas, Piper, Sedona, and Zayne. They have 2 extra tickets to a holiday show, and will randomly select which 2 grandkids get to see the show with them.
a. Give a probability model for this chance process.
b. Find the probability that at least one of the two girls (Piper and Sedona) get to go to the show.

Answers

Probability that one of the girls (Piper as well as Sedona) will be able to attend the performance is one in five.

Explain the term Probability?Any probability is a mathematical representation of the likelihood or chance that a specific event will take place. All these proportions ranging from 0 to 1 and percentages varying from 0% through 100% can be used to describe probabilities.

For the stated question-

There are 6 grandkids.There are two girls.

Out of the six grandchildren, two are to be chosen.

There are 6C2 different ways to choose 2 out of 6 grandchildren.

6C2  = 6! / (6 - 2)!*2!

6C2  = 15

There are 15 different ways to choose two grandchildren out of six.There are 2C1 different ways to choose 1 of the 2 girls.

   

2C1 = 2

There are two different ways to choose one of the two girls.

Number of methods for choosing both girls = 2C2

Number of methods for choosing both girls equals one.

Probability of choosing 1 of the 2 grandchildren is 1/15.

The likelihood of choosing both girls is 2/15.

Probability that one of the females (Piper and Sedona) will be able to attend the performance is:

=  1/15 + 2/15.

= 3/15.

Thus, Probability that atleast one of girls (Piper as well as Sedona) will be able to attend the performance is one in five.

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This rectangular prism is packed with unit cubes with edge lengths of 12 inch each. Which are the dimensions of the rectangular prism? A 812×312×412 B 8×3×4 C 412×212×112 D 4×2×112

Answers

Answer:

Step-by-step explanation:

This rectangular prism is packed with unit cubes with edge lengths of 12 inch each. Which are the dimensions of the rectangular prism? A 812×312×412 B 8×3×4 C 412×212×112 D 4×2×112

The volume of a rectangular prism when given edge length = (Edge length)³

Hence,

Volume = (12 inch)³

Volume = 1728 cubic inches

Therefore, from the above options given, the possible dimensions of the Rectangular prism =

Oliver has a piece of chocolate. What is the volume of the piece of chocolate?
30 cubic centimeters
40 cubic centimeters
50 cubic centimeters
60 cubic centimeters

Answers

Answer:

60 cubic centimeters

Step-by-step explanation:

[tex]3 * 4 * 5 = 60[/tex]

Answer:

60 cubic centimeter

volume= length times width times heighth

substitute values

3 times 5 times 4 = 60

Please can someone help me with this circle theorem question and explain which rule would apply as I can’t seem to find which one I should be using please? :)

Answers

Answer:

  ∠LOP = 96°

Step-by-step explanation:

Given an inscribed angle of 48°, you want to know the measure of the central angle that subtends the same arc.

Inscribed angle

The measure of an inscribed angle is half the measure of the arc it subtends.

  ∠LMP = 1/2(arc LP)

  48° = 1/2(arc LP) . . . . . . use the given value

  96° = arc LP . . . . . . . . . multiply by 2

Central angle

The measure of an arc of a circle is the same as the measure of the central angle it subtends: the arc measure and its central angle measure are identical.

  arc LP = ∠LOP

  96° = ∠LOP

__

Additional comment

That's a long way of saying the central angle is twice the inscribed angle that subtends the same arc. ∠LOP = 2×∠LMP.

Ray had a block of wood in the shape of a rectangular prism. The block and it's dimensions are shown below:

Answers

Answer:

[tex](a)\ Area = 24in^2[/tex]

[tex](b)\ Area = 60in^2[/tex]

Step-by-step explanation:

Given

See attachment for the dimension of the block

Solving (a): Area of the front face

From the attachment, the front face has the following dimension.

[tex]Length = 4in[/tex]

[tex]Width = 6in[/tex]

The area is calculated as:

[tex]Area = Length *Width[/tex]

[tex]Area = 4in * 6in[/tex]

[tex]Area = 24in^2[/tex]

Solving (b): Area of the top and bottom faces

The top and bottom faces have the same dimension

From the attachment, the top face has the following dimension.

[tex]Length = 5in[/tex]

[tex]Width = 6in[/tex]

The area of the top is calculated as:

[tex]Area = Length *Width[/tex]

[tex]A_1 = 5in * 6in[/tex]

[tex]A_1 = 30in^2[/tex]

The area of the top and the bottom faces is:

[tex]Area = 2 *A_1[/tex] ---- because the top and bottom faces have the same dimension

[tex]Area = 2 *30in^2[/tex]

[tex]Area = 60in^2[/tex]

A bag contains 6 red marbles and 4 white marbles. A marble is selected, kept out of the bag, and then another marble is selected. What is the probability of choosing a red marble and then another red marble without replacemen

Answers

Answer: 60% for the first try, and about 55.56% for second try.

Step-by-step explanation:

There's 10 marbles total.

6 red marbles out of 10 total.

60% chance of getting red marbel

6/10=3/5

The second time would be 5 marbles out of 9 marbles in the bag.

About 55.56%

5/9

Chris owcneicjvr fix endive

What fraction is no solution?

Answers

No solution is a fraction that cannot be represented as a fraction of integers.

A fraction is a division of two numbers, and no solution occurs when the divisor is 0, because division by 0 is undefined.

For example, consider the fraction 2/0. This is a fraction with no solution because division by 0 is undefined. To explain this further, let's look at the formula for division: a/b = c. In this formula, a is the dividend, b is the divisor, and c is the quotient. In the fraction 2/0, the dividend is 2 and the divisor is 0, so when we try to calculate the quotient, we get c = 2/0. Since division by 0 is undefined, the result is no solution.

To summarize, no solution occurs when a fraction's divisor is 0 because division by 0 is undefined. This means that no fraction can be represented as a fraction of integers when the divisor is 0 because there is no solution.

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Pretty easy middle school math

Answers

Answer:

3

Step-by-step explanation:

If we use pythagoras theorem we know a^2+b^2=c^2

c being the hypoeneuse

so we half the 8 to get the dimensions of the right angle so the bottom side is 4cm and then we use the hypotenuese which is 5 and plug it in so

a^2+4^2=5^2

a^2+16=25

-16 from both sides

a^2=9

square root both sides

a=3

Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%. How much total tax will a customer pay on both?


Find the total tax using the expanded expression. Did you get the same answer as you did by evaluating the original expression?

PLEASE HELP

Answers

Answer:

Are you on I X L?

Step-by-step explanation:

I apoligize but try googling 5% of 50

Answer:

the total tax is 4.50 dollars, yes it is the same because they are basically the same equation.

Step-by-step explanation:

the swim team trains 4 days every week. Mon, Tues, and Thurs, the swim tea spends 1/2h in the gym followed by 1 1/4 in the pool. On Saturday there is no gym work but double the swim team time. how many hours per week does the team train?

Answers

The number of hours that the team trians per week is 17 hours.

How to illustrate the fraction?

A fraction simply means a piece of a whole. In this situation, the number is represented as a quotient such that the numerator and denominator are split. In this situation, in a simple fraction, the numerator as well as the denominator are both integers.

Since the the swim tea spends 1/2h in the gym followed by 1 1/4 in the pool. On Saturday there is no gym work but double the swim team time. The number of hours will be:

( 1 1/4 + 1/2 + 2 1/2) × 4

= 4.25 × 4

= 17 hours.

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What is 42a - 16 ?????

Answers

Answer:

2 (21a−8)

Step-by-step explanation:

Answer:

2(21a - 8)

Step-by-step explanation:

42a - 16
The gcf of 42, 16 is 2
=> 2(21a-8)

ILL BRAINLIEST YOU PLEASE HELP ME

Answers

Answer:

Step-by-step explanation:

50, 48, and 14

Hope that helps! :)

-Aphrodite

50,48 and 14 is the right answer
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