There are two equations which are true. They are 1.5 - k/5 = 11.5 and K/10 -3 = -8.
Given,
The equations;
1.5 - k/5 = 11.5-2k + 78 = -22-4k + 80 = -1206k - 150 = -150K/10 -3 = -8The value of k = -50
We have to solve the given equations using k as -50 and find the true ones;
Lets check;
1.5 - k/5 = 11.51.5 - (-50/5) = 11.5
1.5 - (-10) = 11.5
1.5 + 10 = 11.5
11.5 = 11.5
This equation is true.
-2k + 78 = -22(-2 x -50) + 78 = -22
100 + 78 = -22
178 ≠ -22
This equation is false
-4k + 80 = -120(-4 x -50) + 80 = -120
200 + 80 = -120
280 ≠ -120
This equation is false
6k - 150 = -150(6 x -50) - 150 = -150
-300 - 150 = -150
-450 ≠ -150
This equation is false
k/10 -3 = -8(-50/10) - 3 = -8
-5 - 3 = -8
-8 = -8
This equation is true.
That is,
There are two equations which are true. They are 1.5 - k/5 = 11.5 and K/10 -3 = -8.
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please answer this "3y=2x
Answer:
y=2/3x
Or
X=3/2y
Step-by-step explanation:
3y=2x
/3. /3
y=2/3x
3y=2x
/2. /2
3/2y=x
Hopes this helps please mark brainliest
Answer:
x=3/2y
y=2/3x
Step-by-step explanation:
for x - first screen shot
for y - second screen shot
Hope that helps!
ERROR ANALYSIS Describe and correct the error in identifying congruent triangles. TUV=XYZ by the SSS Congruence Theorem.
The letters for XYZ are in the wrong order.
The correct statement should be [tex]\triangle TUV \cong \triangle ZYX[/tex]
============================================
Further Explanation:
The order of the letters matters when writing congruence statements.
The claim is that [tex]\triangle TUV \cong \triangle XYZ[/tex]
The first two letters of each are "TU" and "XY" in that order.
But notice how TU has a single tickmark, while XY has a double tickmark. The two sides are clearly different.
--------
Instead, the statement should be: [tex]\triangle TUV \cong \triangle ZYX[/tex] because of the following three facts:
TU = ZY (single tickmark)UV = YX (double tickmark)TV = ZX (triple tickmark)Notice that:
TU and ZY are the 1st two letters of TUV and ZYXUV and YX are the last two letters of TUV and ZYXTV and ZX are the 1st and 3rd letters of TUV and ZYX
5-(40/5)
Step A: 5+ (4)
Step B: 5+8
Step C: 13
In which step did the student first make an error? Be sure to include the correct value of
the expression in simplest form in your answer.
Explain your answer.
Answer:
5 - [tex]\frac{40}{5}[/tex] = 5 - 8 = -3
Step-by-step explanation:
The first mistake made by the student is in Step A where the problem was not copied down correctly.
The price of a movie ticket at the theater is $7 for students.
The price is higher for adults.
A group of 4 students and 3 adults paid $64 in all for movie tickets.
How much does each adult ticket cost?
Each adult tickets costs
The cost of each adult ticket for watching movie at the theatre equals to $12.
How do we derive the cost of each adult ticket?Given data:
Student ticket price = $7
Group of 4 students and 3 adults paid $64 in all for movie tickets.
The computation of each of the adult ticket cost is as follows:
Let x be the cost of each adult ticket.
Then, cost of 3 adult tickets = 3x.
Now:
The cost of 1 student ticket = $7
The cost of 4 student ticket = $7(4)
Then, we get the following equation:
7(4) + 3x = 64
18 + 3x = 64
3x = 64 - 18
3x = 36
x = 12
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Surface area of a rectangular prism 2cm 8cm 7 cm
The surface area of the rectangular prism is 172cm^2
What is a prism?Prism is a three-dimensional solid object in which the two ends are identical. It is the combination of the flat faces, identical bases and equal cross sections. The faces of the prism are parallelograms or rectangles.
The surface area of prism is 2A+ pH
where A is the base area
P is the perimeter of the base
and h is the height
for a rectangular prism, the base area is 2×8=16cm^2
perimeter of a rectangle= 2(l+b)
= 2(8+2)
= 20cm
surface area =( 2× 16) + 20× 7
= 32+ 140
= 172cm^2
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Karama can paint a staircase banister in 50 minutes. Find the rate per minute at which Karama can paint banisters
The rate per minute at which Karama can paint banisters is 0.02.
In the given question,
Karama can paint a staircase banister in 50 minutes.
We have to find the rate per minute at which Karama can paint banisters.
Since we have to find the rate per unit. Rate per unit means how much Karama can paint in one minute.
To find the rate per unit we divide 1 by 50.
As we know that Karama can paint one staircase banister in 50 minute.
So we can write it as
50 minute = 1 staircase banister paint
Now in 1 minute.
1 minute = 1/50 staircase banister paint
Simplifying
1 minute = 0.02 staircase banister paint
Hence, the rate per minute at which Karama can paint banisters is 0.02.
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Complete the table. Round percent change to the nearest tenth of a percent.
Please find attached the completed table of the percentage changes on the amounts drawn with MS Word.
What is the percentage change on an amount?The percentage change on an amount is found by finding ratio of the change in the amount to the original amount then multiplying the obtained ratio by 100.
The percentage change formula is presented as follows;
[tex]\%C = \dfrac{x_2-x_1}{x_1} \times 100[/tex]Where;
%C = The percentage changex₂ = The new amountx₁ = the initial amountMaking each of the variables the subject, indicates;
The new amount, [tex]x_2 = \dfrac{\%C \times x_1}{100} + x_1[/tex]
[tex]\%C \times x_1+100\cdot x_1 = 100\cdot x_2[/tex]
[tex]x_1\cdot (\%C+100) = 100\cdot x_2[/tex]
The original amount, [tex]x_1 = \dfrac{100\cdot x_2}{(\%C+100)}[/tex]
The percentage change, [tex]\%C = \dfrac{c}{x_1} \times 100[/tex]
The original amount, [tex]x_1 = \dfrac{c}{\%C} \times 100[/tex]
Using the above formulas, the completed table is created with MS Excel and is presented as follows;
Original amount Change Percent Change New Amount
68 [tex]{}[/tex] 15 22.1 83
590 [tex]{}[/tex] -40 -6.8 550
115 [tex]{}[/tex] 20 17.4 135
120[tex]{}[/tex] -33 -27.5 87
125[tex]{}[/tex] -39 -31.2 86
163 [tex]{}[/tex] 47 28.8 210
274[tex]{}[/tex] 145.22 17.4 419.22
70 [tex]{}[/tex] -15.4 -27.5 54.6
1400[tex]{}[/tex] -1050 22.1 350
1250[tex]{}[/tex] -25 -2.0 1225
0.24[tex]{}[/tex] 0.3 125.0 0.54
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Camilla borrows a book from the library for dd days. The library charges a late fee of 0. 10 dollars per day that the book is late. If Camilla returns the book more than 21 days after she borrowed it, the expression 0. 10(d-21) represents the total late fee Camilla owes
The expression represents the amount of total money. Then the total late fee Camilla owes will be $2.1.
What is Algebra?
Algebra is the study of graphic formulas, while logic is the interpretation among those signs.
Camilla borrows a book from the library for d days.
The library charges a late fee 0.10 dollars per day that the book is late.
If Camilla returns the book more than 21 days after she borrowed it.
Then the expression will be 0.10d.
The total amount is given as
Total amount = 0.10 d
Total amount = 0.10 x 21
Total amount = $2.1
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Find the measurement of X.
Answer:333
Step-by-step explanation:
Since this is a scalene triangle, two sides will equal the same, meaning two angles will equal the same. So 70 has an equal on the other side, meaning 70+70=140, and x will equal the remainder, meaning x=40.
Hope that helps.
rewrite the function g(x)=2x^2+16x+6 in vertex form by completing the square
The vertex form of the function g(x)= 2[tex]x^2[/tex]+16x+6 is g(x)= 2[tex](x+4)^2[/tex]-26.
What is vertex form of the function?
The function's maximum or lowest possible output is represented by the vertex of the quadratic function's graph. When viewing a graph, the vertex is the highest or lowest point on the parabola. Utilizing the vertex formula is the simplest technique to discover the vertex. It is simple to locate the vertex of the parabola using the vertex form of a quadratic equation. Y=a(xh)2+k is the definition of the generic vertex form, where h is the x-coordinate and k is the y-coordinate of the vertex.
Here the given function is ,
=> g(x) = 2[tex]x^2[/tex]+16x+6
=> g(x) = 2([tex]x^2+[/tex]8x+3)
=> g(x) = 2([tex]x^2+[/tex]8x+16-16+3)
=>g(x) = 2 [[tex](x+4)^2[/tex]-13]
=> g(x)= 2[tex](x+4)^2[/tex]-26
Therefore vertex form of the function is g(x)= 2[tex](x+4)^2[/tex]-26 and vertex is (-4,-26).
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Answer:
g(x)=2(x+4)^2-26
Has a minimum value of -26
Step-by-step explanation:
i got it right!
Which of the following expressions is equivalent to 2y (3y^2 + 4y^4)
The expression that is equivalent to the given expression is 6y³ + 8y⁵
Evaluating an expression and determining an equivalent expressionFrom the question, we are to determine the expression that is equivalent to the given expression
The given expression is
2y (3y^2 + 4y^4)
This can be properly written as
2y (3y² + 4y⁴)
Now, to determine the expression that is equivalent to this expression, we will expand the expression by applying the distributive property.
2y(3y² + 4y⁴)
2y(3y²) + 2y(4y⁴)
Multiplying
6y³ + 8y⁵
Hence,
The expression is 6y³ + 8y⁵
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Suzanne's average daily balance for last month was x dollars. The finance
charge was y dollars.
a. What was the monthly percentage rate?
b. What was the APR?
Part a: Monthly percent rate = y/x
Part b: APR = y/x × 12.
What is meant by the term APR?The annual interest produced by a sum that is paid to investors or charged to borrowers is referred to as the annual percentage rate (APR). APR is a percentage that expresses the actual annual cost of borrowing money over the course of a loan or the income from an investment. An APR might not accurately represent the cost of borrowing but since lenders have some latitude in determining it, excluding some fees.APR and APY (annual percentage yield), a computation that takes interest compounding into account, should not be confused.For the given question;
Average daily balance sheet of Suzanne's is x dollars.
Finance charges = y
Part a: monthly percentage rate
Finance charge = Monthly percent rate × Average daily balance
Monthly percent rate = Finance charge/Average daily balance
Monthly percent rate = y/x
Part b: APR
The annual percentage rate (APR) is calculated by dividing the periodic interest rate even by number of periods in the year that it was in effect. The number of times the rate is applied to a balance is not stated.Thus,
For 12 months.
APR = y/x × 12
Thus, the value of APR for the period of 12 months is APR = y/x × 12 .
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Rewrite x^3+8x^2+11x-20 as a product of linear factors. Explain how you found the factors.
The linear factors of the given cubic polynomial are (x-1)(x+4)(x+5).
What are linear factors?The linear factors of a polynomial are the first-degree equations that are the building blocks of more complex and higher-order polynomials.
Given a cubic polynomial, x³+8x²+11x-20
x³+8x²+11x-20 = (x-1)(x²+9x+20)
= (x-1)(x²+4x+5x+20)
= (x-1){x(x+4)+5(x+4)}
= (x-1)(x+4)(x+5)
Hence, The linear factors of the given cubic polynomial are (x-1)(x+4)(x+5).
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What is the perimeter of the figure?
32.0cm
51.0cm
19.0cm
63.0cm
The perimeter of the figure is 32 cm
How to determine the perimeter of the shape?The figure represents the given parameters
On the figure, we have the lengths of the side lengths to be:
Lengths = 7 cm, 5 cm, 3 cm, 4 cm, 4 cm, 9 cm
To determine the perimeter of the shape, we simply add the side lengths
Mathematically, this can be represented as
Perimeter = Sum of side lengths
Substitute the known values in the above equation So, we have the following equation
Perimeter = 7 cm + 5 cm + 3 cm + 4 cm + 4 cm + 9 cm
Evaluate the sum
Perimeter = 32 cm
Hence, the perimeter is 32 cm
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Each of PQ and RS represents a 2-digit number. Different letter represent different digits, chosen from 6, 7, 8 and 9. What is the greatest product that PQx RS can have?
The greatest product that PQ x RS can have: 96 * 87 = 8352
In this question, we have been given PQ and RS represents a 2-digit numbers. Different letter represent different digits, chosen from 6, 7, 8 and 9
We need to find the greatest product that PQ x RS can have.
Consider P = 9, Q = 6, R = 8 and S = 7
So the two digit numbers would be,
PQ = 96 and RS = 87
PQ x RS
= 96 * 87
= 8352
Therefore, the greatest product that PQ x RS can have: 96 * 87 = 8352
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In thi quetion, aume that the car ue the ame amount of petrol for each mile it travel. A car ue 55 litre of petrol to travel 495 mile. How much petrol would the car ue on a trip of 160 mile?
Give your anwer to the nearet litre
The car use 6.67 liters of petrol to travel 160 miles of distance.
Given, the car use the same amount of petrol for each mile it travels.
A car use 55 liters of petrol to travel 495 miles.
we have to find the petrol used to travel 160 miles.
As, 55 liters = 495 miles
495 miles = 55 liters
1 mile = 55/495 liters
Now, 160 miles = 55/495×160 liters
160 miles = 6.67 liters
So, the car use 6.67 liters of petrol to travel 160 miles of distance.
Hence, the car use 6.67 liters of petrol to travel 160 miles of distance.
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c) √6 x √6 x√6 can someone help
Answer:
14.7
Step-by-step explanation:
Answer:
6[tex]\sqrt{6}[/tex]
or
≈14.7
Step-by-step explanation:
√6 x √6 x√6 can someone help
√6 x √6 x√6 =
6[tex]\sqrt{6}[/tex]
or
≈14.7
brian borrowed a 20-foot extension ladder to use to paint his house. If he sets the base of the ladder six feet from the house how far up will the top of the ladder reach?
The ladder Brian borrowed for painting should go 19.08 feet up the house if Brian sets the base 6 feet from the house
How to find the distance up the house the ladder will goinformation given in the question
hypotenuse = 20-foot ladder
adjacent = 6 feet from the house
opposite = how far up the house = ?
The problem is solved using the Pythagoras theorem is applicable to right angle triangle. the formula of the theorem is
hypotenuse² = opposite² + adjacent²
plugging the values as in the problem
let x be the required distance
20² = 6² + x²
400 = 36 + x²
400 - 36 = x²
x² = 364
x = √364
x = 19.08
The ladder Brain borrowed will go 19 feet high
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The largest U.S. flag in the world is 225 feet by 505 feet.
------------------------
If a square yard of the flag weighs about 3.8 ounces, how much does the entire flag weigh in pounds?
The weight of the U.S. flag in pounds is 2,998.44 pounds.
What is the weight of the flag?The dimension of the U.S. flag is in feet. The dimensions have to be converted to yards.
1 foot = 1/3 yards
225 / 3 = 75 yards
505 / 3= 168.33 yards
The next step is to determine the area of the U.S. flag.
Area = length x width
75 x 168.33 = 12,625 yards²
Weight of the U.S. flag in ounces = 12,625 yards² x 3.8 = 47,975 ounces
1 ounce = 1/16 pounds
Weight of the U.S. flag in pounds = 47,975 / 16 = 2,998.44 pounds
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a market research firm conducts telephone surveys with a 44% historical response rate. what is the probability that in a new sample of 400 telephone numbers, at least 150 individuals will cooperate and respond to the questions? in other words, what is the probability that the sample proportion will be at least 150 400
The likelihood that at least 150 people will collaborate and react in a fresh sample of 400 telephone numbers is 0.9953.
Describe probability?The probability informs us of the likelihood that an event will occur. It is necessary for the likelihood to fall between 0 and 1. The likelihood of success is 1, whereas the probability of failure is 0.
Given, that the market research company has a history of having a 44% response rate for its telephone surveys.
Therefore, p=44%=0.44=μ
n=400
p=150/400
p=0.375
The standard deviation is then equal to,
σ=√(p(1-p))/n
σ=√(0.44(1-0.44))/400
σ=√(0.44×0.56)/400
σ=0.025
Using the z-table, the values are as follows:
z=(p-μ)/σ
z=(0.375-0.44)/0.025
z=-2.6
p(p>0.375)
=p(z>-2.6)
=1-p(z<-2.6)
=1-0.0047
=0.9953
=99.53%
Therefore, the likelihood that at least 150 people will participate and provide information in a new sample of 400 telephone numbers
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=. A model plane is 24 cm in length. It represents a real plane that is 72 meters in
length. What is the scale used?
The scale used is 1 cm : 3m
Find the equation of the straight line passing through the point (3, 5)
which is perpendicular to the line
y = 3x + 2
Answer:
y = -1/3x +6
Step-by-step explanation:
You want the equation of the line through (3, 5) perpendicular to the line y = 3x +2.
Perpendicular lineThe given equation is in slope-intercept form. This lets us identify its slope as 3.
y = mx + b . . . . . . line with slope m and y-intercept b
y = 3x +2 . . . . . . . line with slope 3 and y-intercept 2
The perpendicular line will have a slope that is the opposite reciprocal of this:
m = -1/3 . . . . slope of the perpendicular line
Point-slope formThe equation for a line with slope m through point (h, k) is ...
y -k = m(x -h)
The equation for a line with slope -1/3 through point (3, 5) is ...
y -5 = -1/3(x -3)
Slope-intercept formSolving for y gives us ...
y = -1/3x +1 +5 . . . . . eliminate parentheses, add 5
y = -1/3x +6 . . . . . equation of the desired line
<95141404393>
The radius of a circle is 15 inches. What is
the circumference of the circle? Write
your answer using T.
Answer:
C = 30pi inches
Step-by-step explanation:
The radius is 15 inches (said so in the question)
The diameter is 30 inches (The diameter is twice the radius)
The circumference is
C = pi•d
C = pi•30
C = 30pi
The circumference is 30pi inches.
For each sequence, decide whether it could be arithmetic, geometric, or
neither.
1. 27, 9, 3, ...
2. 4, 8, 12,...
3. 50, 56, 60, ...
4. 36, 12, 4, ...
5. 4, 24,...
1. Therefore, the sequence is geometric.
2. Therefore, the sequence is arithmetic.
3. Therefore, the sequence is neither arithmetic nor geometric.
4. Therefore, the sequence is geometric.
5. Therefore, the sequence is neither arithmetic nor geometric.
Explain sequences and seriesFor the arithmetic, geometric, and harmonic sequences, a collection of sequences and series formulas is provided below. The sequence and series formulas presented here contain formulas for determining the sum of the n terms in a series as well as the nth term of the sequence.
A common difference exists between two succeeding terms in an arithmetic series. There is a typical ratio between succeeding terms in a geometric series.
1. Given sequence is 27, 9, 3, ...
As the difference between the number is large.
So, we will check for geometric sequence.
[tex]r = \frac{27}{9} = \frac{3}{3} = \frac{1}{3}[/tex]
Therefore, the sequence is geometric.
2. Given sequence is 4, 8, 12, ...
As we can see there is uniform difference of 4
Therefore, the sequence is arithmetic.
3. Given sequence is 50, 56, 60, ...
As the difference between the number is not uniform.
So, we will check for geometric sequence.
[tex]r = \frac{50}{56} \neq \frac{56}{60}[/tex]
There, the sequence is neither arithmetic nor geometric.
4. Given sequence is 36, 12, 4, ...
As the difference between the number is large.
So, we will check for geometric sequence.
[tex]r = \frac{36}{12} = \frac{12}{4} = 3[/tex]
Therefore, the sequence is geometric.
5. Given sequence is 4, 24, ...
The number of terms is very less and hence we can't decide.
There, the sequence is neither arithmetic nor geometric.
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what was the major flaw in the stanford prison experiment? question 9 options: a) the respondents wanted to leave, but zimbardo would not let them. b) the students were not randomly assigned. c) the study went on too long. d) zimbardo did not use a control group.
Zimbardo did not use a control group. Experiments are performed to reach meaningful conclusions using the appropriate research method. The correct answer is (A).
Experiments whether they are done in natural settings or in a controlled environment need to follow certain ethics. But the Stanford Prison Experiment is an exception. In this experiment, Philip Zimbardo, the Stanford psychologist, took paid participants and asked them to be “guards” in a mock prison at Stanford University.
As soon as the experiment began, the “guards” began mistreating the “prisoners,” in order to provoke evil circumstantially. The conclusion of the study suggested innocent people, thrown into a situation where they have power over others, will begin to misuse that power. And people who are put into a situation where they are powerless will be driven to submission.
The Stanford Prison Experiment has proved to be a Fraud. Philip Zimbardo, the Stanford psychologist who did the experiment, and interviews of the participants, offers convincing evidence that the guards in the experiment were trained to be cruel. This proves that the experiment’s most memorable moment of a prisoner screaming out of rage and proclaiming, “I’m burning up inside!” was the result of the prisoner's acting skills. Many of them think of this study as more of a dramatic demonstration with no real outcomes. The Zimbardo prison experiment is a classic study that has been recently reevaluated and exposed as a fraud.
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a school has 400 grade 9's, 375 grade 10's, 300 grade 11's and 325 grade 12's. twenty students from each grade are surveyed
The type of bias that can be present in stratified sampling is that the students cannot be selected to accurately reflect the population.
How are samples classified?Samples may be classified according to the five options as follows:
A convenient sample is drawn from a conveniently available pool of options.A random sample is equivalent to placing all options into a hat and taking some of them.In a systematic sample, every kth element of the sample is taken.Cluster sampling divides population into groups, called clusters, and each element of the group is surveyed.Stratified sampling also divides the population into groups. However, an equal proportion of each group is surveyed.In this problem, an equal amount of students from each class was surveyed, hence a stratified sample was used.
The type of bias present in stratified sampling is that the students cannot be selected to accurately reflect the population.
Missing InformationThe problem asks for which type of bias is present in this sample.
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Determine the value of x in the equation below.
16 - (x + 5) = 5
Answer:
x=6
Explanation:
16-(x+5)=15
open the bracket using 1 as an invisible number after the minus sign16-x+5=15You move -x to cross the equality sign and it change to + 16+5-15 =x+15 change to -15 because of the equality sign 21-15=6x=6Write and equation in slope intercept form for the line that passes through the given point and is parallel to the graph of the equation
(4, -3); x = -5
The equation in slope intercept form is x =4 .
Given:
x = -5
x + 5 = 0
here slope m = ∞.
line equation passes through (4,-3) with m = ∞
-3 = 1/0(4) + c
4 + c = 0
c = -4.
y = (1/0)x - 4
x - 4 = 0
x = 4.
Therefore the equation in slope intercept form is x =4 .
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A car rental company's standard charge includes an initial fee plus an additional fee for each mile driven. The standard charge S (in dollars) is given by the
function S=18.95 +0.50M, where M is the number of miles driven.
The company also offers an option to insure the car against damage. The insurance charge I (in dollars) is given by the function I=4.80 +0.15M.
Let C be the total charge (in dollars) for a rental that includes insurance. Write an equation relating C to M. Simplify your answer as much as possible.
An equation relating C to M is (C) = 23.75 + 0.65M.
Given,
In the question:
The standard charge S (in dollars) is given by the
function S=18.95 +0.50M, where M is the number of miles driven.
The insurance charge I (in dollars) is given by the function I=4.80 +0.15M.
and, Let C be the total charge (in dollars) for a rental that includes insurance.
To find the An equation relating C to M.
Now, According to the question:
By the topic:
The total Charge (C) = The standard Charge (S) + The insurance charge (I)
Thus,
The total Charge (C) = 18.95 +0.50M + 4.80 +0.15M.
Combine like terms:
The total Charge (C) = 18.95 + 4.80 + 0.50M + 0.15M
The total Charge (C) = 23.75 + 0.65M
Hence, An equation relating C to M is (C) = 23.75 + 0.65M.
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De la comida que hay en la nevera, un tercio son alimentos sólidos. De estos un medio son vegetales, de los cuales tres quintos son frutas, de las que dos quintos son manzanas.
¿Qué fracción del total son manzanas?
Si X es la cantidad total de alimento en la heladera, (1/10)*X es la cantidad de manzanas, entoces vemos que la fraccion es 1/10.
¿Qué fracción del total son manzanas?Digamos que la variable X representa la cantidad total de comida en la heladera.
Sabemos que un tercio del total de los alimentos son solidos, entonces la cantidad de alimentos solidos es:
(1/3)*X
Luego 1/2 de estos son verduras, entonces la cantidad de verduras que tenemos es:
(1/2)*(1/3)*X
Finalmente, 3/5 de las verduras son manzanas, entonces la cantidad de manzanas es:
(3/5)*(1/2)*(1/3)*x = (1/10)*x
Asi hemos encontrado la fraccion.
Aprende más sobre fracciones:
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