Luka, Zara, and Kim simplified the following expression: -3(x+4) – 2(5x – 6). Their work
is shown below. Who simplified the expression correctly? Explain your answer. (Hint:
None, one, or two of the students could be correct.)
I
Luka
-3(x+4) - 2(5x-6)
-3(x+4) + -2(5x + -6)
-3x + -12 + -10x + 12
-13x
Zara
-3(x+4) - 2(5x-6)
-3x + -12 - (10x -12)
-3x + -12 - 10x + 12
-13x
Kim
-3(x+4) - 2(5x - 6)
-3x + -12 - 10x - 12
-13x - 24

Answers

Answer 1

Answer:

Kim and Zara are correct.

Step-by-step explanation:

Correct simplification:

-3(x+4) - 2(5x-6)

-3x + (-12) - 10x + 12

-3x - 12 - 10x + 12

- 13x

Luka is correct.Zara is correct.Kim is incorrect because when -2 is distributed to (5x-6), it should come out to be -10x+12.

Related Questions

Help!!!! This is a triangle and I really don’t understand it :(

Answers

Answer: x is 3

Step-by-step explanation:

6x-5=4x+1

x = 3

Write the equation of the line with two given points

(-12, 14) and (6,-1)

Answers

The answer is y= -5/8x + 2 1/4

please help me with this soon much appreciated.

Answers

Answer:

1 : 2

Step-by-step explanation:

this is a 30-60-90 triangle which is a special right triangle. the ratio of the sides is x: x*sqrt(3): 2x, in the order short leg: long leg: hypotenuse. so the ratio of the short leg to the hypotenuse is x:2x or 1:2

what is 47- 24 (x+3)x

Answers

23x2+69x and that’s correct lol

Solve (x – 3)2 = 49. Select the values of x. –46 -4 10 52

Answers

Answer: x = 55/2

Step-by-step explanation: (x)(2) (-3)(2) = 49                                                       2x-6+6 = 49+6                                                                                                               2x/2 = 55/2                                                                                                                   x = 55/2

I know that my answer isn't a choice for one of the values of x but that's the result that I got when I solved (x–3)2 = 49.

Mandy has 1 drink and Karl has 2 Mandy takes all of Karl's drinks

Answers

Answer:

What is this question asking? If you give me a question to answer I can help you.

Step-by-step explanation:

Simplify the following expression: (1 point)

2x − 6y + 3x2 + 7y − 14x
3x2 + 12x + y
3x2 − 12x − y
3x2 − 12x + y
3x2 − 12x − 13y

Answers

Answer:

[tex]⟼3x {}^{2} + 12 + y[/tex]

Step-by-step explanation:

[tex]Here,2x − 6y + 3x {}^{2} + 7y − 14x [/tex]

[tex] = 3x {}^{2} + 2x - 14x - 6y + 7y[/tex]

[tex] = 3x {}^{2} - 12x - 6y + 7y[/tex]

[tex] = 3x {}^{2} - 12x + y[/tex]

Hello there!

Combine Like Terms:

2x-6y+3x^2+7y-14x

-12x+y+3x^2

3x^2-12x+y

Hope this helps. you!

~Just a determined gal

#CarryOnLearning

Please mark brainliest; I would really appreciate that! :)

[tex]MysteriousNature :)[/tex]

what the answer to 1024/32

Answers

Answer:

32

Step-by-step explanation:

A country has two political parties, the Demonstrators and the Repudiators. Suppose that the national senate consists of 100 members, 44 of which are Demonstrators and 56 of which are Repudiators. (a) How many ways are there to select a committee of 10 senate members with the same number of Demonstrators and Repudiators

Answers

The American political system in which George Washingmachine was right

What is the missing reason in the proof? Statement Reason 1. m || n and p is a transversal 1. given 2. ∠2 ≅ ∠3 2. ver. ∠s theorem 3. m∠2 = m∠3 3. def. of congruent 4. ∠3 ≅ ∠7 4. corr. ∠s theorem 5. m∠3 = m∠7 5. def. of congruent 6. m∠2 = m∠7 6. ? corresponding angles theorem alternate interior angles theorem transitive property subtraction property

Answers

Answer:

See below for answer.

Step-by-step explanation:

m ∠3 = m∠ 7       If ║ then cor. ∠s are =

m ∠2 = m∠7        Transitive     ∠2 = ∠3; ∠3 = ∠7; ∴∠2 = ∠7

The missing reason is : transitive property.

What is Transitive property?

A transitive relation is defined as a homogeneous relation R over the set A, where the set contains the elements such as x, y and z, such that R relates x to y and y to z, then R also relates x to z.

As in statement 3 we have,

∠2 = ∠3

and in statement 5 we also have

∠3 = ∠7

So, by using transitive property we can write,

If a = b and b = c,

then a = c

Hence, m∠2 = m∠7 using transitive property.

Learn more about transitive property here:

https://brainly.com/question/2437149

#SPJ2

plz help due soon

Aurelia buys a dress that costs $40.00. She pays 6% sales tax. How much does she pay for the dress with tax?​

Answers

Answer:

D

Step-by-step explanation:

6% of 40 is 2.4, 40.00+ 2.40=42.40

Answer:

42.50

Step-by-step explanation:

40X1.06

42.40

A water hose has a flow rate of 12 gallons per minute. How many minutes will it take to fill up a pool that holds 30 cubic feet of water. One cubic foot equals 7.48 gallons. Round to the nearest minute.

Answers

Answer:

19 minutes

Step-by-step explanation:

30 ft³ = 224.4 Gallons

224.4 gallons / 12 gallons/min

18.7 min

round -- 19 minutes

Can someone please help me with this?

Answers

Obviously, Ali is correct. Khamis did a mistake, he forgot the negative sign of  - 5, when he divided b. He should have let - 5b and divided it by - 5 like ali did.

Good Luck

Paetan pays $10.73 for 3.7 pounds of cherries. What is the cost for 1 pound of cherries?

Answers

Answer:

$2.9

Step-by-step explanation:

Alyssa paints 3 walls blue. Each of the
walls is 8.3 feet tall and 7.5 feet wide.
Round the length and width to the
nearest whole number. Then estimate
the area that Alyssa will paint.

Answers

Answer:

192

Step-by-step explanation:

The length is 8.3 and the width is 7.5

8.3 to the nearest whole number is 8

7.5 to the nearest whole number is 8

8 x 8 = 64

64 x 3 = 192

The whole area of the wall that Alyssa painted is 192 ft²

What is area?

The area is the region bounded by the shape of an object. The space covered by the figure or any two-dimensional geometric shape, in a plane, is the area of the shape.

Given that, Alyssa paints 3 walls blue. Each of the walls is 8.3 feet tall and 7.5 feet wide.

Since, the length is 8.3 and the width is 7.5

8.3 to the nearest whole number is 8

7.5 to the nearest whole number is 8

Therefore, area = length × width

= 8 x 8 = 64 ft²

Area of 3 walls =

64 x 3 = 192 ft²

Hence, the whole area of the wall that Alyssa painted is 192 ft²

For more references on area, click;

https://brainly.com/question/27683633

#SPJ2

someone please help me

Answers

Answer:

∡3 & ∡6 are same side interior angle.

∡4 & ∡6 are alternate interior angles.

∡2 & ∡8 are vertical angles.

∡1  & ∡5 are corresponding angles (because they are in the same spot).

∡1  & ∡3 are vertical angles (because they are the opposite angle of each other).

∡1 & ∡2 are supplementary angles (because they add up to 180°).

Find the area of the following shape. please show me your work so i can understand how to do this.

Answers

Answer:

10

Step-by-step explanation:

count the full squares then add up the halfs and u get 10

Someone tell me what this is plz

Answers

Answer:

This is an equilateral triangle, which means all the sides are equal.

Hence, all three angles are the same.

[tex]3x=\frac{180}{3}[/tex]

[tex]3x=60[/tex]

Therefore,

[tex]x=20[/tex]

Answer:

20

Step-by-step explanation:

3x+3x+60= 180

6x= 180-60

6x= 120

Find the vertex and the axis of symmetry.

Answers

Answer:for the vertex I believe it is y-9 and x-2 for axis of symmetry

Step-by-step explanation:

Answer:

a. Downwards

b1. x intercept = (-4,0) (8,0)

b2. Y intercept (0,8)

c. Vertex (2,9)

d. Axis of symmetry 2

Step-by-step explanation:

expression 5n + 2 can be used to find the total cost in dollars of bowling where n is the number of games bowled and 2 represents the cost of shoe rental. How much will it cost Vincent to bowl 3 games?

Answers

Answer:

$17

Step-by-step explanation:

n=3

5*3=15

15+2=17

Solve it by Substitution

no link or website a well download for the answer. please do step by step​

Answers

30 in each bus. 17 in each van

To solve this problem, we first have to create a system of equations. After that, you set the equations equal to each other, and use that to simplify and find the value of one variable. Once that is found that answer can be plugged into one of the two original equations to find the other variable.

Determine the value of d when h=29 in the equation D=4h/5

Answers

Answer:  23.2

Step-by-step explanation:

D = 4h/5

D(29) = 4(29)/5

D(29) = 23.2

B. Company P calculates the earnings of employee, E, for working h hours using the equation E = 8.25h.

Answers

Answer:

Step-by-step explanation:

Kent has paid a total of $589 For internet service. Each month of service cost $19. How many months, m, of internet service has Ken't paid for? Use the model.

Giving brainliest

Answers

Answer:

589/19=31 dollars a month

Step-by-step explanation:

Hope this helps!

Geometry hw help please.

Answers

Answer:

6

Step-by-step explanation:

You can solve this using Pythagorean Theorem;

a² + b² = c²

c is always the hypotenuse or the longest length in the triangle which is always opposite to the forming 90° angle.

a and b values can be the other 2 legs, doesn’t matter which one is which

we are given;

a = 8

c = 10

a² + b² = c²

(8)² + b² = (10)²

64 + b² = 100

b² = 100 - 64

b² = 36

√b² = √36

b = 6

Therefore the answer = 6

Hope this helps!

What is the sum of 2 of the interior angles of a regular pentagon?

Answers

The sum of the two interior angles of the regular pentagon will be 540°

What is a polygon?

A polygon is a plane figure described by a finite number of straight-line segments connected to form a closed polygonal chain in geometry. A polygon is defined as a bounded plane region, a bounding circuit, or both.

We can also calculate the sum of the interior angles of the pentagon in the following way:

We know that the sum of the interior angles of a polygon of n sides

Sum = (n – 2) × 180°.

Sum = 3× 180°= 540°.

Hence, the sum of the interior angles of a pentagon is 540°.

To know more about polygons follow

https://brainly.com/question/11943627

#SPJ2

3 feet + 7 inches = ___ inches

Answers

Answer:

10

because when you plus 3+7 is 10

There are 12 inches in one foot
12 inches x 3 feet = 36 inches
36 + 7 = 41 inches
Answer: 41 inches

You had $20 to spend on five pens. After buying
them you had $10. How much did each pen cost?

Answers

Answer:

$2

Step-by-step explanation:

5 x 2 = 10

5 pens x 2 dollars = $10

$20 -$10 = $10 left

Please solve correctly :)

Part C only!!!​

Answers

Answer:

So, the average rate of change is 0.475.

Step-by-step explanation:

If n = 2, then f(n) = 8.82. If n = 6, then f(n) ≈ 10.72. Now, 10.72 – 8.82/ 6 – 2 = 1.9/ 4 = 0.475.

6. Order the following decimal numbers
from least to greatest.
0.3
3.45
34.5
1.03

Answers

Answer:

In order: 0.3 - 1.03 - 3.45 - 34.5

Step-by-step explanation:

0.3 is less than 1. 1.03 is over 1. 3.45 is over 3. 34.5 is over 34, which is the greatest.

Other Questions
Only right answers no spammers Choose the right program to match each of the following descriptions.Provided preschool forpoor children Lenore is continually tense and plagued by muscle tension, sleeplessness, and an inability to concentrate. Lenore MOST likely suffers from _____ disorder. Please choose the correct answer from the following choices, and then select the submit answer button. bipolar persistent depressive generalized anxiety obsessive-compulsive During the Reconstruction era, the federal government made an effort to_________Areinstitute pre-Civil War norms in the SouthBlower taxes for both northern and southern statesimprove the legal and social status of Black peopleDlessen the impact of regulations on businesses Rewrite the following equation in slope-intercept form. 2x + 16y = 11 Write your answer using integers, proper fractions, and improper fractions in simplest form. does the point (7 5) satisfy the equation y = x + -2 Evaluate.(2)4Enter your answer in the box.PLEASE HURRRY AND HELP ME!!! What type of cell or structure stores food within the stem?. How much would $100 invested at 6% interest compounded monthly beworth after 20 years? Round your answer to the nearest cent. what are sins in God's eyes How to find cane yield? what is the estimate of 45.15 Jose is a big baseball fan and roots for the Boston Red Sox. He went to baseball camp in California, where, unlike him, almost everyone was a fan of the Los Angeles Dodgers. Jose is very friendly but he had a hard time connecting with other campers because they viewed him as: Suppose the population of a town is 100,000 in 2014. The population increases at a rate of 4.5 percent every year. What will the population of the town be in 2020? Round your answer to the nearest whole number. What is an IF statement used for? I im ored does nyone nn tlk? How do you vote someone Brainlest? What impact did the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 have? 10. Deja el libro encima de la mesa. 11. Posiblemente llueva este fin de semana. 12. Ojal haya llegado a tiempo! -8(-6x+w-4) distributive property