-k+ 3k
Combining like terms and distributing

Answers

Answer 1
2k Is the answer bc k becomes -k multiply k and 3 multiply k and 1, the k just gets copied along the answer is k then 3*k evaluates to 3k -k+3*k evaluates to 2k

Related Questions

PLEASE HELP!!!!- Luisa ran 3 2/3 kilometers in 1/3 of an hour. If speed is the distance over time, calculate Luisa's Speed. Circle the letter for the correct answer _______________________________________________________________ Thank you! =)

Answers

Answer:

11 km per hour

Step-by-step explanation

I literally took the quiz!

a- 6=9. Please help

Answers

Answer:

a = 15

Step-by-step explanation:

6 + 9 = 15

a = 15

15 - 6 = 9

yes

Answer:

a=15

Step-by-step explanation:

Move all terms not containing  a  to the right side of the equation.

15-6=9

Simplify 5 - 4(x - 1) - 2(x + 1)

Answers

Answer:

-6x+7

Step-by-step explanation:

Start by multiplying (x-1) by -4 and (x+1) by -2.

Then you will have the equation 5-4x+4-2x-2

Next, just find your like-terms.

Your like-terms are 5,4,-2 and -4x, 2x

Then, for easier for calculation, just use the equation:

-4x-2x+5x+4-2

Your final answer should then be:

-6x+7

Solve and check -2x + 3 = -11

Answers

Answer:

x=7

Step-by-step explanation:

1.     -2x+3=-11  << first make sure the x is one one side of the equal sign. so  remove the 3, by subtracting if from 11

2. -2x+3=-11

         -3   -3

         =

3.  -2x= -14    <<  then so isolate the x= divide -2 from -14 (two negatives divided equals a positive)

4. x=7

                     

Jenny bought scrapbooking supplies for $145.00. She paid $11.60 in sales tax. What was the sales tax rate on the supplies? If necessary, round your answer to the nearest tenth.
a) 7%
b) 8%
c) 9%
d) 7.5%

Answers

The answer to this is B (8%) I found that by working through all the answer options. Hope this helps

The sales tax rate is 8%.

The correct option is (b).

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Jenny bought scrapbooking supplies for $145.00.

She paid $11.60 in sales tax.

let the tax rate be x%.

So, the price without sales tax = 145 - 11.6 = $133.4

Thus, x% of 133.4 = 11.6

133.4 x = 1160

x = 8.65%

x= 8%

Hence, the tax rate is 8%.

Learn more about Unitary Method here:

https://brainly.com/question/22056199

#SPJ2

Question 4 points)
Janine has a container of baking chocolate. One container weighs 4/5 pounds. The other container weighs 13/15 pounds. How many pounds of
baking chocolate does janine have?
Pls I need it now thank you

Answers

Answer:

8/90 or 50/90

Step-by-step explanation:

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WILL MARK BRAINIEST!Apply the dilation D to the polygon with the given vertices. Name the coordinates of the image points.
D:(X,Y) —> (3x,3y)
J(1,4), K(6,4), L(6,1), M(1,1)

Answers

Option 2 (multiply everything by 3)

Change the rational number 18 to a decimal. Show work (worth 3 points).

Answers

Answer:

18.0

18 as a decimal is 18.0

Mrs. Haas needs to print sets of music. Each set of music has 7 sheets. If Mrs. Haas has a package of 500 sheets of paper, what is the greatest number of sets she can print?

Answers

Answer:

71

Step-by-step explanation:

500 / 7 = 71

1 16
Solve the inequality
5+ - > -
x
a. x<0 or x > 2
b. x<1 or x>5
c. x<0 or x > 3
d. x <1 or x>3

Answers

Answer:

2

Step-by-step explanation:

Which expression is equivalent to 9p+9p

Answers

Answer:

18p? I don't know what other expressions could be equivalent. I just added 9p to 9p to get my answer.

What is the value of x

78
53
42
72

Answers

Answer:

127+x=180

180-127

x=53


Explain in 1-2 sentences how you identify
proportional relationship
using a table or graph.
PLEASE helpppp

Answers

Answer:

You can tell because, as x increases/decreases, y increases/decreases at the same rate EACH TIME. This way, no matter how many times the proportions increase OR decrease, the ratio between x and y always stays the same.

Slove (3x-2)=(2x-1)/(2) show step by step

Answers

Answer:

x= 3/4

Step-by-step explanation:

[tex](3x - 2) = \frac{(2x-1)}{2}[/tex]

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

6x - 4 = 2x -1

4x = 3

x= 3/4

Answer:

x=3/4

Step-by-step explanation:

Remove parentheses.

3x-2=\frac{2x-1}{2}3x−2=22x−1

Multiply both sides by 22.

6x-4=2x-16x−4=2x−1

Add 44 to both sides.

6x=2x-1+46x=2x−1+4

Simplify  2x-1+42x−1+4  to  2x+32x+3.

6x=2x+36x=2x+3

Subtract 2x2x from both sides.

6x-2x=36x−2x=3

 

Simplify  6x-2x6x−2x  to  4x4x.

4x=34x=3

 

Divide both sides by 44.

x=\frac{3}{4}x=43

30% of 145 =
do not round answer.

Answers

Answer:

0.00206896551

Step-by-step explanation:

30%/145=0.00206896551

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\text{Guide for you to go by....}\\\bullet\large\text{ Percentages run out 100}\\\bullet\large\text{The word \underline{\bold{of}} means \underline{multiply}}[/tex]

[tex]\bold{30\%\times145}\\\\\bold{\dfrac{30}{100}\times145}\\\\\bold{\dfrac{30}{100}=\dfrac{30\div10}{100\div10}=\dfrac{3}{10}}\\\\\bold{\dfrac{3}{10}\times145= answer}\\\\\bold{\dfrac{3}{10}\times145=\dfrac{87}{2}}\\\\\boxed{\boxed{\bold{Answer: \dfrac{87}{2}}}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

PLEASE HELP ME ASAP?!?
Find the length of the missing side. Simplify all radicals.

Answers

Answer:

22.47

22.5 (simplified)

Step-by-step explanation:

22.47 = √(8^2 + 21^2)

Gina made a scale drawing of a house and its lot. She used the scale 1 inch: 4 feet. If the house's
driveway is 9 inches in the drawing, how long is the actual driveway?
feet

Answers

Answer:

The driveway is 36 feet

Step-by-step explanation:

1 in = 4 feet

2 in = 8 feet

This shows us that you have to multiply 4 by how many inches there is.

Calculator
6
What is the area of this figure?
5
4
3
Enter your answer in the box.
2
1
units
6
-5
-3
-2
1
3
5
-1
-1
--2-

Answers

Answer:

creo que sería un 72-613:818 :D espero que te allá ayudado ekisde bueno es una materia particular así que esa sería la respuesta espero que te allá ayudado

Answer:

44 units2

Step-by-step explanation:

took the test <3

CAN SOMEONE PLEASE HELP MEEEE? PLEASSEEE. EMERGENCY!! 30 POINTS!! PLEASE AND THANK YOU.

Answers

Answer:

[tex]\sqrt{2n^{2}}[/tex]

You have the side lengths of the two legs, n and n.

Then, using the pythagorean theorem you have to find the length of the third side:

[tex]a^2 + b^2 = c^2\\n^2 + n^2 = c^2\\2n^2 = c ^ 2\\\sqrt{2n^2} = c[/tex]

where c is the third side

i can confirm that the person above is correct

Please help!!! I don’t really understand this at all

Answers

- line CD is perpendicular to segment AB
- point M is the midpoint of segment AB

9514 1404 393

Answer:

  a, b, e (only)

Step-by-step explanation:

The circle centered at A is all of the points that are distance AB from A.

The circle centered at B is all of the points that are distance AB from B.

The points C and D are points that are distance AB from both A and B.

The line joining those points (C and D) consists entirely of points that are equal distances from A and from B. CD is the perpendicular bisector of AB.

Point M is one of the points on line CD, and is also on segment AB. Because it is on CD, we know it is the same distance from A as from B. That means AM = BM, and M is the midpoint of AB.

__

Points B, C, D are not on the same line, so can form a triangle. As with any triangle, the sum of any two segments is greater than the length of the third. Here, this is expressed as CB + BD > CD.

__

With some work using the Pythagorean theorem, you can show that ...

  CM = AM×√3

Similarly, MD = BM×√3.

Adding these two relations tells us ...

  CM +MD = √3(AM +BM)

  CD = AB×√3 . . . . . AB and CD are not the same length

__

AM and BM are on the same line, so cannot be perpendicular to each other.

_____

Additional comment

When you are studying compass and straightedge constructions, you would do well to actually perform these constructions using those tools on paper. This gives you a feel for what is going on and helps you remember the steps. A computer screen is no substitute for hands-on.

A cell phone company charges $50 for the phone plus a monthly service charge of $30. An equation gives the cost y after x months. Which is the true of the relationship between x and y?

Answers

Answer:

i don't know i ain't a calculator  

what is the correct answers ?​

Answers

x = 4 and y = 4 square root 2

Answer:

x = 4 , y = 5.65

Step-by-step explanation:

3) determine the value of
(-6) x (-3)

Answers

-6 × -3
- × - = +
6×3 = 18

= 18

Help me please!
If you get it right, I’ll will brainliest u!!

Answers

Answer: c

Step-by-step explanation:

The perimeter of a rectangular pool is 72 meters. If the length of the pool is twice its breadth. Its length is_________.

Answers

Answer:

Length = 18 meters

Step-by-step explanation:

Let the length of the rectangular pool = l meters

And breadth of the pool = w meters

Perimeter of the rectangular pool = 2(l + 2w)

Since, perimeter of the rectangular pool is 72 meters.

2(l + 2w) = 72

l + 2w = 36 --------(1)

If length of the pool is twice of its breadth,

l = 2w

w = [tex]\frac{l}{2}[/tex] -------(2)

By substituting the value of 'w' from equation (2) to equation (1),

[tex]l+2\times{\frac{l}{2}}=36[/tex]

2l = 36

l = 18 meters

Problem 2
A jewelry store purchased a pair of earrings for $54
before a markup was applied.
There was a 90% markup. After the markup, a 6.5%
sales tax is added.
What is the total after markup and tax?

Answers

Answer:

$109.27

Step-by-step explanation:

100 + 90 = 190

54/100 X 190 = 102.60

100 + 6.5 = 106.5

102.60/100 X 106.5 = 109.269

monetary unit round to 2dp

109.27

A sprinkler system uses 800 gallons of water in 5 days. The system uses ___ gallons of water in 1 day

Answers

Answer:

160

Step-by-step explanation:

800 gallons in 5 days. The days is the denominator and the gallons are the numerator, whatever you do the the bottom you do to the top, so you divide the denominator by 5 and the numerator by 5 and you get 160 gallons per day. If you want to know how your answer is right, multiply 160 by 5

Someone please help me quick I’m timed

Answers

It’s c because the x is exterior angles

1. Which value of the denominator would make the below statement true?
2/3 = 16/?
a.6
b. 8
c. 12
d. 24


Please help !

Answers

Answer:

d. 24

Step-by-step explanation:

a

Step-by-step explanation:

multiple

6times 3--16

What is the solution to the system of equations2x + 3y = 40andy=x + 10?
A
x = 2; y = 12
B
x = 4; y = 14
C x = 12; y = 2
D x = 14; y = 4

Answers

Answer:

A is the correct answer

Step-by-step explanation:

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

Hope that helps

A is the correct answer is the correcta answer

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

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