Maricella solves for x in the equation 4 x minus 2 (3 x minus 4) + 4 = negative x + 3 (x + 1) + 1. She begins by adding –4 + 4 on the left side of the equation and 1 + 1 on the right side of the equation. Which best explains why Maricella's strategy is incorrect?

Answers

Answer 1

Answer:

Step-by-step explanation:

Given the equation

4x-2(3x-4)+4 = -x+3(x+1)+1

Open the parenthesis on both sides

4x-6x+8+4 = -x+3x+3+1

-2x+12 = 2x+4

Collect like terms

-2x-2x = 4-12

-4x = -8

Divide both sides by -4

-4x/-4 = -8/-4

x = 2

Hence the value of x is 2

Answer 2

Answer:

4

Step-by-step explanation:


Related Questions

Four minus n
(choose )
3n + 7
4-n
3n - 7
n-4

Answers

Answer:

the answer is b 4-n. Hope this helps

Answer:

the second one (4-n).

Step-by-step explanation:

lol

Frank is getting ready for Thanksgiving. He is putting biscuits and croissants on a platter. He has 27 biscuits and 36 croissants. Frank is making and platters so that each platter must have the same number of biscuits and the same number of croissants. What are the greatest number of platters Frank can make using the biscuits and croissants?

Answers

Answer:

27, with 9 croissants left over.

7 2/15 plus 5 2/3 plus 9 13/15 ? Plz help

Answers

Answer:

22 2/3

Step-by-step explanation:

if it helps make it braintliest please

Answer:

22 10/15

Step-by-step explanation:

You would just convert the 2/3 to 15ths which would be 10/15ths. Then add all of the fractions to get 25/15 and that's equal to 1 10/15 and then add the 7, 5, and 9

Use the LCD to rewrite 47 and 310 with the same denominator.

Answers

Answer:

i dont have a answer but i need this one too

Step-by-step explanation:

Veronica is ordering trophies for her school. Company P charges $3.50 for each trophy and a one-time engraving fee of $25. Company R charges $7.50 for each trophy and a one-time engraving fee of $17. Which inequality can be used to find x, the minimum number of trophies that can be ordered so that the total charge at Company P is less than the total charge at Company R?

Answers

Answer: Required inequality : [tex]3.50x+25<7.50x+17[/tex]

Solution: x<2.

Step-by-step explanation:

Let x = number of trophies.

Company P charges $3.50 for each trophy and a one-time engraving fee of $25.

Total charge for x trophies from Company P=[tex]3.50x+25[/tex]

Company R charges $7.50 for each trophy and a one-time engraving fee of $17.

Total charge for x trophies from Company R =[tex]7.50x+17[/tex]

When total charge at Company P is less than the total charge at Company R, then

[tex]3.50x+25<7.50x+17\\\\\Rightarrow\ 7.5x-3.5x<25-17\\\\\Rightarrow\ 4x<8\\\\\Rightarrow\ x<2[/tex]

Required inequality : [tex]3.50x+25<7.50x+17[/tex]

Solution: x<2.

Answer:

<2

Step-by-step explanation:

PLSSSSSSSS HELP! How do I find the domain AND range in the same graph??

Answers

Answer:

Step-by-step explanation:

Let's start with definitions.

Domain: Indicates the values that x can be, has a certain set

Range: Indicates the values that y can be, has a certain set

To find the domain of a graph, we want to see where all the x values fit. In the graph below's case, the domain would be  -3<x≤1

To find the range, we need to see where all the y values fit. In the graph below's case, the range would be -4≤y<0.

Notice how some of them are < instead of ≤. This is because they have an open circle. When a point has an open circle, it means that point can't be included in the equation, hence the < instead of ≤

Line segment YV of rectangle YVWX measures 24 units. Rectangle Y V W X is shown. A diagonal is drawn from point X to point V. The lengths of sides Y V and X W are 24 units. The angle of V X W is 30 degrees, the angle of X W V is 90 degrees, and the angle of X V W is 60 degrees. What is the length of line segment YX? 8 units 8 StartRoot 3 EndRoot units 12 units 12 StartRoot 3 EndRoot units

Answers

Answer:

The correct answer would be 8 root symbol 3

Step-by-step explanation:

because i chose it and got it right

The length of the line segment YX is [tex]8\sqrt{3}[/tex] if the line XW is of 24 units.

What is a trigonometric function?

It is a ratio of sides of a right angled triangle.

How to use Trigonometric functions?

It can be seen that the diagonal is making a right angle triangle XWV so

we will use the trigonometric function to determine the value of WV which will then be equal to XY because it is a rectangle.

tan(30)=VW/XW

1/[tex]\sqrt{3}[/tex]=VW/24

VW=24/[tex]\sqrt{3}[/tex]

VW=8[tex]\sqrt{3}[/tex] UNITS by multiplying and divide by root 3.

Hence the length of the side XY =8 root 3 units.

Learn more about trigonometric functions at https://brainly.com/question/24349828

#SPJ2

y=4x+4on a graph please help now

Answers

It’s a horizontal line that goes through positive 16 because you multiply 4*4

Find the equation of the line that passes through the following points. Write the equation in slope-intercept form.
(-4,-3) and (-8,-4)


y =?

(Use integers or fractions for any numbers in the expression.)

Answers

answer would be y=0x-2

what is -3/8 ÷ 7/12​

Answers

Answer:

-9/14

Step-by-step explanation:

Answer:

-9/14

Step-by-step explanation:

do keep change flip

keep -3/8, change the division sign to multiplication, flip 7/12 to 12/7

multiply then simplify and u will get the answer -9/14

S2#3) What is the constant rate of change of the line that passes through the points (1, -3) and (13, 3)?

Answers

Answer:

1/2 is the slope

Step-by-step explanation:

Two lines, A and B, are represented by the equations given below: Line A: y = x − 2 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why? (−3, −5), because the point does not lie on any axis (−3, −5), because the point satisfies both equations (−4, −8), because the point satisfies one of the equations (−4, −8), because the point lies between the two axes

Answers

Answer:

The point (-3,-5) is the solution of the system because it satisfies both equations

Step-by-step explanation:

System of equations

A system of equations represents a situation where multiple conditions apply, and the possible solution to the system, if any, must satisfy all conditions, not just some of them.

We have the system of equations:

[tex]\left\{\begin{matrix}y=x-2\\ y=3x+4\end{matrix}\right.[/tex]

The solution of the system is an ordered pair (x,y) that satisfies both equations.

Test the point (-3,-5):

[tex]\left\{\begin{matrix}-5=-3-2=-5\\ -5=3*(-3)+4=-9+4=-5\end{matrix}\right.[/tex]

We can see both equalities are true, thus the point (-3,-5) is the solution of the system because it satisfies both equations

Answer:

B is correct

Step-by-step explanation:

9 push-ups in 1 day = 18 push-ups in
days

Answers

Answer:

2 days?

Step-by-step explanation:

there is no question here but I assume you wanted to know how many days in which 18 push ups were done.

18 push ups are done in 2 days

:)

2. The ages of students in a dance class are 10, 9, 11, 12, 9, 10, 9, 10, 11, 12, 8, 12, 12. What is the mode for this set of data? 09 O 10 O 11 O 12​

Answers

Answer: 12

Step-by-step explanation: Mode just means the number that appears the most, and counting how many of each number there is, 12 appears more frequently.

10 - 3 times

9 - 3 times

11 - 2 times

12 - appears 4 times

if de=ja then what does h equal?????

Answers

Answer:

h equals nothing

Step-by-step explanation:

bc h is not part of the equation

i just need the answer for this question

Answers

It might be x=8, bear with me because it’s been awhile, but I believe that bisect means cut into 2 equal pieces so angle ABD is 4x+8 so DBC also has to equal 4x+8. And the whole angle together is 80 degrees. So you would add 4x+8 and 4x+8 equal to 80. You would get 8x+16=80. So then you would subtract 16 on both sides and get 8x=64. Then divide by 8 to get x by itself to get the answer which is 8. If that isn’t it then I am terribly sorry. But that’s my best answer I honestly got for ya man.

HELP ME PLEASE !!!!!!!!!!!!!!!

Answers

Answer: its 22.5

Step-by-step explanation:

The question is in the text help plzzz

Answers

Answer:

m<6=102

Step-by-step explanation:

So being that supplementary they equal 180 so you would take 78 and subtract that  from 180 and you will get 102 therefore 102 is your answer.

Belle collects books and is working on building a small personal library. She would like to have at least 500 books in her library. She currently has 182 books. She plans to add at least 5 new books per month to her collection.Which inequality represents Belle’s book collection progress per month ()?

Answers

Answer:

182 + 5t [tex]\geq[/tex] 500

Step-by-step explanation:

Find the quotient
-4/2

Answers

Answer:

-2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

-4/2

= -2

Fourteen minus the product of a number and 15

Answers

Answer:

"14-5x".

Step-by-step explanation:

Let the number be x. The given statement is "Fourteen minus the product of a number and 15".

The product of a number and 15 means 15x.

14 minus product of x and 15 = 14-15x

Hence, the given statement means "14-5x".

NOT TO
SCALE
hcm
18.6 cm
8.2 cm
30.6 cm
102 cm
16.4 cm
Find the value of h.​

Answers

Error in product of quantities: Suppose x=a×b
Let Δa=absolute error in measurement of a,
Δb=absolute error in measurement of b,
Δx=absolute error in calculation of x, i.e. product of a and b.
The maximum fractional error in x is
x
Δx

=±(
a
Δa

+
b
Δb

)
Percentage error in the value of x=(Percentage error in value of a)+(Percentage error in value of b)
According to the problem, length l=(16.2±0.1)cm

Breadth b=(10.1±0.1)cm

Area A=l×b=(16.2cm)×(10.1cm)=163.62cm
2

As per the rule area will have only three significant figures and error will have only one significant figure.Rounding off we get,area A=164cm
2

If ΔA is error in the area, then relative error is calculated as
A
δ4

.

A
Δ4

=
l
Δl

+
b
Δb

=
16.2cm
0.1cm

+
10.1cm
0.1cm



=
16.2×10.1
1.01+1.62

=
163.62
2.63



⇒ΔA=A×
163.62
2.63

cm
2
=162.62×
163.62
2.63

=2.63cm
2


ΔA=3cm
2
(By rounding off to one significant figure)

Area, A=A±ΔA(164±3)cm
2

60 points Please hurry

Write the equation in point-slope form of the line that passes through the given
point with the given slope.
4. (2.1); m = 3
5. (-3,-5), m = -2 6. (4, -11); m 2
Write an equation in point-slope form of the line that passes through the
given points.
7. (4,0) and (-2, 1) 8. (-3, -2) and (5,3) 9. (-5, 1) and (3, 4)
10. Explain why it does not matter which point you choose when writing the
equation of the line in point-slope form, given two points.
11. Members of the student council are conducting a fundraiser by selling school
calendars. After selling 80 calendars, they had a loss of $360. After selling
200 calendars, they had a profit of $600. Write an equation that describes the
relation between y, the profit or loss, and x, the number of calendars sold. How
much profit did they make from selling each calendar? How much would they
have lost if they had sold no calendars?

Answers

Answer:

See my explanations below please :)

Step-by-step explanation:

4. y-1 = 3(x-2)

5. y+5= -2(x+3)

6. y+11 = (3/4)(x-4)

7. y = (-1/6)(x-4)

8. y+2 = (5/8)(x+3)

9. y-1 = (3/8)(x+5)

10. Because after simplifying them, the final equations are the same

11. so we have (80,-360) and (200, 600)

   m = (600-(-360)) / (200-80) = 960 / 120 =8

   => y+360 = 8(x-80)

  Profit selling each = the slope m = $8

  Working backwards, when they sold 80 calendars they still have a loss of $360, so the original loss (when x=0) = 80*8 + 360 = 640 + 360 = $1,000

Done :) Can I have a Brainliest plzzzzz ty!        

HELP!
Will mark branliest answer if gotten right!

Answers

Answer:

The answer should be 34!!

Step-by-step explanation:

Answer:

∠ 3 = 40°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles in Δ ABC for ∠ 1

∠ 1 = 180° - (58 + 90)° = 180° - 148° = 32°

∠ 2 = ∠ 1 = 32° ( vertical angles )

Thus

∠ 3 = 180° - (108 + 32)° = 180° - 140° = 40°

PLEASE HELP!! Brainliest to first answer

An archer shoots an arrow into the sky where the motion of the arrow can be modeled by the equation() = −5^2 + 20 + 4. Where t is time in seconds and f(t) is height in feet. Find how long it will take the arrow to hit the ground using an algebraic method. Round to the nearest tenth if necessary. Show all of your reasoning used with this algebraic method.

Answers

Answer:

t=−1

Step-by-step explanation:

i need help please the question How many adults are needed if there are 72 children?

Answers

Answer:

Probably around 50

Step-by-step explanation:

Depends on how much children each adult has...

Convert 9.46ml into deciliters

Answers

Answer:

0.0946

ml to deciliters is divided by 100

Answer:

.0946

Step-by-step explanation:

100 ml =1 dl so

9.46 moved over 2 times after the point would equal .0946

The volume of a circular cylinder is calculated using the formula = ^2*2ℎ. If the height ℎ is known to be equal to the diameter 2 and ℎ is measured at a percentage error of 2%, find the percentage error in calculating the volume of the cylinder.

Answers

Answer:

6%

Step-by-step explanation:

From the information given:

The height h is said to be equal to the diameter which is 2r

h = 2r

r = h/2

Recall that: The volume for calculating a circular cylinder is:

[tex]V = \pi r^2 h[/tex]

[tex]V = \pi (\dfrac{h}{2})^2 h[/tex]

[tex]V =\dfrac{\pi h^3}{2}[/tex]

[tex]\dfrac{dV}{dh} = \dfrac{3 \pi h^3}{4}[/tex]

Thus, the percentage error of the height can now be calculated as:

[tex]\dfrac{dh }{h} \times 100 = 2[/tex]

[tex]dh =\dfrac{h}{50}[/tex]

Now taking the differential of the volume, we have:

[tex]dV = \dfrac{dV}{dh}* dh[/tex]

[tex]dV = \dfrac{3 \pi h^2}{4}* \dfrac{h}{50}[/tex]

FInally, the %age change in the volume is calculated as follows:

[tex]\dfrac{dV}{V} = \dfrac{ \dfrac{3 \pi h^2}{4}* \dfrac{h}{50}}{\dfrac{\pi h^3}{2}}[/tex]

[tex]\dfrac{dV}{V} = \dfrac{3}{50} \times 100 \%[/tex]

[tex]\dfrac{dV}{V} =6 \%[/tex]

Thus;  the percentage error in calculating the volume of the cylinder is 6%

Hank likes to bake cake, and so he needs 3 eggs per cake. Write an expression to show how many eggs he will need if he bakes x cakes. Then, write an equation to determine how many eggs he will need to bake 11 cakes. Explain how you came up with the expression or equation, or how to use them to answer the problem

Answers

Answer:

3 eggs per cake = 33 eggs for 11 cakes

Step-by-step explanation:

if you multiply by 3 by 11 you get 33 so therefor for each one cake you need three eggs and for 11 cakes you will need 33 eggs  

Please help me vote you brainiest

Answers

Answer:

B, D, E

Step-by-step explanation:

Answer:

12 and 8

Step-by-step explanation:

96 divided by 12 = 8

36 divided by 12 = 3

96 divided by 6 = 16

36 divided by 6 = 6

96 divided by 4 = 24

36 divided by 4 = 9

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