Al simplificar la expresión-3 (a - b) + 5b - {2a + b + [a - 3b - (2b - a) + 5b] - a}, se obtiene: - (6a + 7b)
La simplificación de expresiones algebraicas requiere la eliminación de los corchetes por sus factores de multiplicación seguido de la combinación y agrupación de los términos semejantes en suma y resta.
De la información proporcionada:
= -3 (a - b) + 5b - {2a + b + [a - 3b - (2b -a) + 5b] - a}El primer paso es abrir los soportes de adentro hacia afuera.
i.e.
= -3a + 3b + 5b - {2a + b + [ a - 3b - 2b + a + 5b] - a}= - 3a + 3b + 5b - {2a + b + a - 3b - 2b + a + 5b - a}= - 3a + 3b + 5b -2a - b - a + 3b + 2b - a -5b + aAhora, el siguiente paso es la reorganización;
= - 3a - 2a - a - a + a + 3b + 5b - b + 3b + 2b - 5b= - 6a - 7b
Por factorización;
= - (6a + 7b)
Por tanto, podemos concluir que la simplificación de la expresión anterior es - (6a + 7b).
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x/3+10=15 pls help me
the Answer is...:
X=195
Answer: X is 15
Step-by-step explanation:
Multiply both sides with 3
(x/3) + (10 x 3) = 15 x 3
x + 30 = 45
Add - 30 to both sides
x + 30 - 30 = 45 - 30
x = 15
Hope this helps!
In wrestling you score points by performing certain moves. Escapes, takedowns, and nearfalls are moves you can perform to score points. An escapeis worth 1 point, a takedown is worth 2 points, and a nearfall is worth 3 points. Anahi scored a total of 240 points by completing 100 moves. She had 4 times as many takedowns as escapes. How many escapes, takedowns and nearfalls did she have?
Answer: Im gonna take you down like a sweet muffin.
The number of escapes, takedowns and nearfalls Anahi have is 6, 24 and 70 respectively.
How many escapes, takedowns and nearfalls did she have?escape is worth 1 point,
a takedown is worth 2 points, and
a nearfall is worth 3 points.
escape = x
takedown = y
nearfall = z
x + y + z = 100. (1)
x + 2y + 3z = 240. (2)
y = 4x. (3)
substitute (3) into both equation
x + 4x + z = 100
x + 8x + 3z = 240
5x + z = 100. (4)
9x + 3z = 240. (5)
Multiply (4) by 3
15x + 3z = 300 (6)
9x + 3z = 240. (5)
Subtract (5) from (6) to eliminate z
6x = 60
x = 60/6
x = 6
Substitute into (3)
y = 4x
y = 4(6)
y = 24
Therefore, from (1)
x + y + z = 100.
6 + 24 + z = 100
30 + z = 100
z = 100 - 30
z = 70
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These jus gon keep comin sb tryna jus do the rest of my questions i only got 6 mo
Answer:
The answer is A
Step-by-step explanation:
NEED HELP NOW PLZ
6) Find KM 2x-2+10=7x-2
Answer:
2x-7x=-2-8
-5x=-10
x=2
Step-by-step explanation:
x=2
What property of addition allow us to change 2+4x into
4x + 2 between the first and second lines?
3π please help! i dont understand pi
[tex]3\pi \\ 3\pi \times\ \frac{180°}{\pi} \\ 3 \times 180° = 540°[/tex]
Solved, The value of [tex]3\pi[/tex] is 540°A student wrote a photography manual which she plans to sell online for $ 13 per copy. Her total expenses were $ 55. Write a linear equation to show the relationship between x , the number of manuals the student sells, and y , the profit the student earns.
Answer:
y = 13x - 55
Step-by-step explanation:
So this is what we know
Selling price = $13 per copy
Expenses = $55
The formula for profit in this case is:
Profit = total selling price - expenses
In which y is the profit
The total selling price is 13x. x here is for the number of manuals she sells
The expenses are $55.
This then becomes y =13x - 55
HOPE THIS HELPED
Help please !!!!?!!!!
Answer:
m < 2 = 45°
Step-by-step explanation:
m < 1 and m < 3 are corresponding angles that lie on the same side of the transversal. Since they are corresponding angles, then it means that they have the same measure.
Therefore, if m < 1 = 135°, then m < 3 = 135°.
Also, the sum of m < 2 and m < 3 = 180° because they are supplementary angles.
Therefore:
m < 2 + m < 3 = 180°
m < 2 + m < 135° = 180°
m < 2 = 180° - m < 135°
m < 2 = 45°
List the characteristics of a proportinonal relationship
Answer:
Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".
The two requirements for a proportional relationship are: The ratio of the two variables maintain the same ratio.
2x + 3 = 3x + 2
Please solve this equation
Answer:
[tex]2x + 3 = 3x + 2 \\ collecting \: like \: terms \: \\ 2x - 3x = 2 - 3 \\ 1x = 1 \\ x = \frac{1}{1} \: \: or \: \: x = 1[/tex]
Answer: the answer is 1 or 1 over 1 so x=1
Step-by-step explanation: first thing combine the like terms . Second thing make minus instead of plus . Third thing divide and get the answer .
2x-3x= 2-3
1x=1
×=1/1 or 1
HOPE IT HELPS YOU . PLEASE GIVE BRAINLIEST .THANKS .
The test scores for the Chapter 5 test in Algebra I were:75,95,90,95,60,95,75,95,90Question:a. Find the mean, median, mode, and range of the data.b. Which measure best describes the set of data? Why?c. If test scores of 65 and 75 were added to the set, what would happen to the mean?
Answer:
mean : 85.6
mode : 95
median : 90
range : 35
Step-by-step explanation:
B The mean
The reason why is because it shows the average test score of all the students .
C The mean would decrease because there is more numbers to divide by after adding all of them together .
Find four consecutive odd integers
such that twice the smallest
subtracted from three times the
largest is 63.
What is the LCD of 2/3,4/5,7/10 and ?
Answer:
30
Step-by-step explanation:
2/3 = 20/30
4/5 = 24/30
7/10 = 21/30
Answer: 30
Step-by-step explanation: 2/3 = 20/30, 4/5 = 24/30, 7/10 = 21/30
if f(2x+4)= 4x² + 1 find the value of x
Answer:
It equals to 16.
4(2)*2 - 2(2) + 4
4(4) - 4 + 4
16 - 0
= 16
My tomato plant grows 5/4 inches per month. How many months will it take for my plant to grow 45/16 inches?
Answer:
9 months
Step-by-step explanation:
its will be 9 months because 9*5 is equal to 45.
Stanley ran 48 of a mile. Gary ran 36 of a mile. Who ran farther
what is 56x56 and how much can i give away and still have 500
56 x 56 = 3136
If you subtract 500 from 3136 you get 2636.
Using this information you know subtracting 2636 from 3136 gives you 500.
Hope this helps!
A salesperson earns nine percent commission on sales. The equation for the amount he or she earns in commission is, where s is the amount sold. How much commission is c=0.09s will he or she earn if the amount sold is $6,000? Write an ordered pair to represent your answer.
According to the word problem question;
If the salesperson earns 9 percent commission on sales;
In essence, 9/100 of the sales proceedings belongs to the salesperson.
Mathematically; the equation for the amount he or she earns in commission is;
c = 0.09swhere; c = commission and s = amount sold.Consequently, if the amount sold is $6,000;
The amount he or she earns in commission is;
c = 0.09 × $6,000c = $540.
The answer in ordered pair form is therefore;
(s,c) = ($6000, $540)
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Solve for x.
-12-3x â€" 15 < 36
Enter your answer, as one inequality, in the box.
Answer:
its 2242.81
Step-by-step explanation:
2.5 (pp. 109-111). 5. y = ax. -21 = a(6). (2,-2) f(x) = -X-1 ... [31 + 25 42 + 36 18+ 127_[56 78 307 ... A = Pert = 2000€(0.04)(5) = $2442.81.
Quick I need an answer PLEASE!! What is 18,931 ÷83
Answer:
228.08433734939759036144578313253.....
Pls Answer 15 Points
This isn’t something we can really answer for you hun.
If you need help understanding, here’s a course that might help:
https://www.khanacademy.org/math/geometry/hs-geo-transformations
find three consecutive even integers whose sum 72
22, 24, 26
Step-by-step explanation:
2n - 2 + 2n + 2n + 2 = 72
6n = 72
n = 72/6
n = 12
∴ so three consecutive even integers whose sum is 72 :
2n - 2
= 2(12) - 2
= 24 - 2
= 22
2n
= 2(12)
= 24
2n + 2
= 2(12) + 2
= 24 + 2
= 26
verification
22 + 24 + 26
= 46 + 26
= 72 ✓✓
Please please help me with this question please help me now please
Answer:
a) linear, straight when graphed and no exponents
b) quadratic, x has exponent
c) quadratic, x has exponent
d) linear, no exponent
e) quadratic, x has exponent
f) i think it's neither because there's two variables that can't add together
Step-by-step explanation:
Answer:
A is linear because a linear equation is mapped in the form y=ax+b and results in a straight line when graphed. This equation has a slope, 1, which occupies the space for a and a y-intercept of 3 which occupies the space for b
B is neither because it doesn't fit the linear form or the quadratic form (which is constrained by the equation y=ax^2+bx+c. The highest degree for this form is 2.) I believe this function is actually a type of cubic which is not an option for the question.
C is a quadratic because it follows the form y=ax^2+bx+c and results in a parabola
d. 3x-y=5 is linear because even though it is not in the y=ax+b form, it can be manipulated into it by subtracting 3x from both sides and then dividing by -1 on both sides to get y=3x-5 which fits the form and graphs a line.
e. 5-x^2=89 would be neither because there is only one variable and there is no value of y that can be solved for. While we can find an x value (or perhaps multiple x values depending on the equation) it wouldn't result in a graphable equation which is a necessity to be classified as a linear or quadratic. In fact, I believe this is actually just an equation and not a function at all and since linear and quadratics are forms of functions they cannot be either. This is because a function is defined as a relation between two variables where each input has one (and only one) output and this equation doesn't have two variables and wouldn't have an output.
f. Neither for the same reason as in e
Hope this helps!
228 ÷ 2? Help PLEASE ITS MY HOMEWORK
Please help!!!!!!!:(
Answer:
Yo no sé. ¿Has intentado buscarlo?
Step-by-step explanation:
The graph of y=f(x) is shown. Draw the graph of y=f(-x).
Myra spends $68.24 on movies. She spends 1/4 of the money buying movies online, and the rest on DVDs. If each DVD cost $17.06, how many DVDs does Myra buy?
Answer:
She bought 3 DVDs because $17.06 is 1/4 of $68.24
What are the combining like terms ?
Answer:
2r+1
Step-by-step explanation:
-5r-8+9+7r= (-5r+7r)+(-8+9)
Solve:
2r+1
Hope this helps!
Answer:
[tex]2r+1[/tex]
Step-by-step explanation:
[tex]-5r-8+9+7r[/tex]
Combine like terms:
[tex]-5r+7r-8+9[/tex][tex]-8+9=1[/tex][tex]-5r+7r=2r[/tex][tex]2r+1[/tex]________________________
Emma and Devon have a total of 21 trophies. Emma has twice as many trophies as Devon. How many trophies does Devon have? Fast, please.
I'm pretty sure you just do 21 times 2. So your answer should be 42.
6y - 5 = 7y - y what does y equal
show how you did it pls
Answer: y is a false statement
Step-by-step explanation: put all the y terms on one side and all the constants on the other. i'm going to move all the y terms to the right and the constants to the left. on the left we have a -5 leftover and on the right it would be 7y-y-6y. if you add those terms together, you're left with -5=0 which is not possible. y is a false statement