Mathematics High School

simplify k - 1 + 1 - 4k

Answers

Answer 1

Answer:

-3k

Step-by-step explanation:

k-1+1-4k

k-4k

-3k

Related Questions

a copy machine copy’s 90 pages in 30 seconds. how long will it take to copy 30 pages. ?

Answers

Answer:

10 seconds

Step-by-step explanation:

90 divided by 3 is 30, so 30 divided by 3 is 10.

Please let me know if it helps.

Answer:

10 Seconds

Step-by-step explanation:

90 pages on 30 seconds

so think about this: how many pages per second?

90/ 30 = 3

3 pages per second

so how many seconds will it take it to copy 30 pages?

30/3 = 10

So 10 seconds.

Them sum of two numbers is 17. One number is 3 less than 2/3 of the numbers. What is the lesser number?

Answers

Answer:

The smaller number is 5

Step-by-step explanation:

Let the smaller number be x

the other number is (17 -x) (we know they add up to 17)

2/3 of the bigger number is written as 2/3 (17 - x)

The smaller number is 3 less than that. (so subtract 3 to get x)

x= 2/3 (17 -x) - 3 <-- We have an equation, solve for x

Check 2/3 x 12 - 3 = 8 - 3 = 5

how many dogs were household pets in the U.S in 2012, in scientific notation

Answers

Answer:

A

Step-by-step explanation:

I NEED HELP PLZ
which of the following is not a contributing factor towards Air Pollution?
O
A. Emmisions from the millions of motorized vehicles
O
B. Smoke from factories burning fossil fuels.
C. Dust and other debris from multiple construction projects in each city
D. Sewage being dumped into the local rivers.

Answers

Answer:

I think its the last one because the problem is not air pollution related

-5 Stars

Answer

The answer is d) sewage being dumped in local rivers.

Step-by-step explanation:

That wouldn't be contributing to air pollution, it would be water pollution.

Which is more, 50,000 millimeters or 5 decameters?

Answers

Answer:

Step-by-step explanation:

50,000 mm=5,000 cm=500 decimeter=50 m=5 decameter

so both are equal.

How many more turtles were there in 2021 than 2007 ?

Answers

2007: 1990000
2021: 2300000
Answer = 310000

Answer:

so 1.99 x 10^=19,90000

and 2.3 x 10^6=2,300,000

now subtract this 2 which equal 310,000

Step-by-step explanation:

For a minute i thought it was a general question and it's supposed to be 2012

Find the slope of the line that passes through the points
(3,5) and (5,13) and type the answer below. Start your
answer with m=

Answers

Answer:

m=4

Step-by-step explanation:

5(2n - 4) = 9(n + 2)​

Answers

1. Distribute
5(2n-4)
10n-20

9(n+2)
9n+18

10n-20=9n+18

2. Combine like terms
combine the terms with “n”, and then combine the other numbers.

Hope this helps!

What is -8 + -14
6
22
-6
-22

Answers

Answer:

56

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

PLEASE HELP ME SOLVE THIS ASAP.
Determine the solution to the System of equations below by using the ELIMINATION METHOD. Show your work

3x+2y=28
x+2y=8

Answers

Answer: (10, -1)

Step-by-step explanation:

Subtract the bottom equation from the top to get:

2x=20

X=10

Plug on for X , y= -1

PLEASE HELP ME!!! :(

Answers

Step-by-step explanation:

Perimeter=3m+4-m+2m-1=4m+3

so option c

Answer:

its 3+6m

Step-by-step explanation:

you just add those 2 numbers

Analyze the reflectional symmetry of the letters.


Which two letters have reflectional symmetry?

S and H
R and K
S and K
H and A

Answers

The two letters that have reflectional symmetry are:

H and A.

Eloise has 293 books that she must package into boxes. Each box must hold 8 books. Eloise divides 293 by 8 and gets an answer of 36 R 5.

What is the correct interpretation of R 5 for this situation?

Answers

Answer:

it means there are five books left, and the 36 boxes are filled

GIVING BRAINLIEST:: MATH!

Answers

Answer:

C

Step-by-step explanation:

I think that is the answer because 5x5x5=125

Answer:

it is c 125

Step-by-step explanation:

Stephen purchased a guitar, which was originally priced at $80 but discounted at 25%. He also had to pay 5% sales tax. What amount did Stephen pay to purchase the guitar?

Answers

Discounted by 25% means he paid 75% of the original price:

80 x 0.75 = $60

Now multiply the sale price by 1 + tax rate:

60 x 1.05 = 63

He paid $63 total.

A factory produced 4000 light bulbs in one day. A sample of 100 bulbs was randomly selected and tested. The tests revealed that 7 of the 100 light bulbs were defective. At this rate, how many light bulbs would be defective out of the 4000 produced?

Answers

Answ

Step-by-step explanation:

sos will give brainleiset thank you

Answers

Answer:

Both C and D are similar

Step-by-step explanation:

The are similar because each of the sides are proportional to each other. On letter C the scale factor of each side is 1.2. To get from the first triangle to the second, they multiplied each side by 1.2 and ended up with a slightly larger triangle. The same thing happens on the second one except for it is slightly smaller with a scale factor of 1/2.

Please help!!!! Maths!!!!!

Answers

Answer:

x= 2 or x= -3

Step-by-step explanation:

Bring the equations together using a common denominator (x-5) (x+7)

x-29/(x-5) (x+7)= 1

Multiply both sides by (x-5) (x+7)

x- 29= (x-5) (x+7)

x- 29= (x-5) (x+7)= x^2 + 2x - 35

-x^2 - x + 6 = 0

-(x-2)(x+3)= 0

Multiply both sides by -1

(x-2)(x+3)= 0

Split it into two equations

x-2= 0 or x+3= 0

x= 2 or x= -3

Please help will give Brain!!

Answers

yes i think because i think so

Answer:

Yes

Step-by-step explanation:

Their sides are similar proportionally and the 60 degrees + 120 degrees makes 180 degrees meaning the OTHER angles match

sin 420° =

Your answer:
A.sin 30°
B.sin 60°
C.sin 90°
D.sin 20°

Answers

Answer: B

Step-by-step explanation:

360 is a full circle. 420-360= 60

The vegetable garden has 95 ripe plants. The number of tomatoes is 16 fewer than twice the number of squashes. How many of each vegetable are ripe?​

Answers

Answer:

Tomatoes = 39.5

Squash = 55.5

Step-by-step explanation:

T (tomatoes) = S - 16

S + T = 95

we plug it in now

S + (S - 16) = 95

2s = 95 + 16

2s = 111

s = 55.5??

hm. Let's go with it

T = 55.5 - 16

T = 39.5

39.5 + 55.5 = 95

I...guess?


In the algebraic expression 9x + 2y + 4x - 12, what are the "like terms"?

1. 9x and 2y
2. 2y and 4x
3. 2y and 12
4. 9x and 4x

Answers

Answer:

9x and 4x

Step-by-step explanation:

can someone tell me i really need it asap

Answers

Answer:

A

Step-by-step explanation:

4/CD=CD/5

CD^2=20

CD=sq rt 20=2sq rt 5

is y = 6/x proportional

Answers

Answer:

inversely proportional

PLZZZZZZZZ HELPPP SOONNN REWARD BRAINLIESTT!!!!!!!!!!!!!!!!!!

Answers

The vertex of the parabola is on the x-axis. The parabola opens down. There are 2 x-intercepts. the x intercept would be (1,0) so you could choose the one that says just one.

\begin{aligned} &-x+4y=-9 \\\\ &y=-2x +6 \end{aligned} ​ −x+4y=−9 y=−2x+6 ​ Is (2,3)(2,3)left parenthesis, 2, comma, 3, right parenthesis a solution of the system?

Answers

Answer:

NO

Step-by-step explanation:

Given the system of equation

-x+4y = -9,... 1

y = -2x+6.... 2

To find the solution to the equation

Substitute equation 2 into 1

-x+4(-2x+6) = -9

-x-8x+24 = -9

-9x= -9-24

-9x = -33

x = 33/9

Find y

y = -2x+6

y = -2(33/9)+6

y = -66/9 + 6

y = -66+54/9

y = -12/9

y = -4/3

Hence (2,3) is not the solution to the system of equation

what is the value of the expression below?
1 2/8+2 3/4+3/8

A.3 8/20

B.3 8/12

C.4

D.4 3/8​

Answers

Answer:

D

Step-by-step explanation:

4⅜ hope that helps............

Complete the solution of the equation. Find the
value of y when x equals -29.
-X – 7y = -34

Answers

Answer: 9

Step-by-step explanation:

-x-7y= -34

-(-29) -7y =-34

29 -7y =-34

-7y = -63

y = 9

it is y=9 for the value of y and x

do u know 64/12 as a mixed number.in its simplest form.

Answers

5 1/3 is 64/12 in it's simplest form as a mixed number.

Hope it helps you out! Good luck. :)

Answer:

16/3

That's the answer.

Two students from each fourth and fifth grade class were on the planning committee.
If Jackson School has 17 fourth and fifth grade classes in all, how many students planned the camlval?
students planned the carnival.

Answers

Answer:

34

Step-by-step explanation:

17(2)=34

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