Mathematics Middle School

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Which is a simplified form of the expression -4(n + 1) – (n + 2)?
A. 2n + 3
B. -3n – 2
C. -4n – 5
D. -5n – 6

Answers

Answer 1
-4(n+1)-(n+2)
(-4n-4) - (n-2)
-3n-2
Answer 2

Answer:

Hi! The answer to your question is D. -5n-6

Step-by-step explanation:

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Related Questions

ANSWER FOR BRAINLIEST

What additional information do you need to find the total amount of cardboard needed for the box?

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2x4=8Step-by-step explanation:

The width I think I may be wrong

Quick need the answer.Please ​

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Answer:

B

Step-by-step explanation:

dsjihgnvosjdiufabnvoilasdb ill give brainley

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Answer:

-876 would be the right answer

-876 is ur answer i think

100 POINTS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Rachel found that the time it takes for her to make her favorite desert decreases the more times she makes its. The time is takes in minutes(M) can be modeled by: M=72-0.75n, where n is the number of times that rachel has made the desert.
A. how long will it take rachel to make her desert the fifth time?

B. after how many times will rachel be able to make her desert in 63 minutes?

C. How long will it take rachel to make her desert the 40th time? Do you think this is reasonable?

Answers

Answer:

A: 68.25 minutes

B: 12 times

C: 42 mins and you decide this part I actually don't know. But I think it could be reasonable, after 40 times someone should get pretty good at it.

Step-by-step explanation:

a: 72 -0.75*5 = 68.25

b: M=63=72-0.75n

subtract 72 from each side: -9 = -0.75n

divide each side by -0.75: n = 12

so 12 times

c: 72 - 0.75(40) = 42 minutes. Now this could be is reasonable, but we don't know what their desert is. But 40 times is a lot of practice.

Determine the constant rate of change. please know what is before answering.

Answers

The constant rate of change is 82

A baker decorates 42 cupcakes in 30 minutes. She decorates cupcakes at a constant rate.

Answers

Since the baker can bake 42 cupcakes in 30 minutes, and we need to find how many she can decorate in 1 min, we divide the 30 min by 30 to get 1 min, and divide 42 by 30 as well since it is a constant rate and we need to keep it proportional. 42/30 is 1.4, so she can decorate 1.4 cupcakes in 1 min. Hope this helps!

HELP ASAP ASAP!! NO LINKS PLEASEEEE OR U WILL BE REPORTED, I NEED AN ANSWER, WILL GIVE BRAINIEST!!

Answers

Step-by-step explanation:

1. Image of A is, A' (-7,-2)

2. Pre image of B' is, B (6,6)

3. Image of C is, C' (-3,-5)

4. The side which is congruent to side AB is, A'B'

5. The angle that is congruent to angle C is C'

6. The translation is 9 units left and 6 units down, so (x,y) becomes (x',y') where x' = (x-9) and y' = (y-6)

7.

a. The translation is 2 units right and 8 units down,

so, P (x,y) to P' (x+2,y-8)

b. Quadrilateral PQRS becomes P'Q'R'S' where the translation is 2 units right and 8 units down. Both quadrilateral are same in shape, length and size, their co-ordinates are different, their co-ordinates translated as follows,

P (-4,5) to P' (-2,-3)

Q (0,5) to Q' (2,-3)

R (2,1) to R' (4,-7)

S (-4,1) to S' (-6,-7)

Answered by GAUTHMATH

CAN SOMEONE HELP MEEEE????

Answers

first bar: 4(high),21(across)

second bar: 9(high),22(across)

third bar: 12(high),14(across)

i’m honestly just trying to answer random ones to get points

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Answers

The graph one is (-2,2)

Answer: 4,2= Quadrant 1    -2,4= Quadrant 2      5,-3=Quadrant 3

-4,-4=Quadrant 4 First Page           A=-2,2      2nd Page

Step-by-step explanation:

My Knowledge :)

Sam is mixing paint for his bedroom. IN a can he has mixed 4 oz of white paint with 1 oz of royal blue. HIs room will require one gallon of paint to cover all the walls. How much blue paint should he add to one gallon of white to create the color he likes? 128 oz = 1 gallon

Answers

Answer:

2 galonn at 10 balloon of the missing assignments and hair cut today I have a impostor you jesus po ba kayo ano yun sabaysabay you jesus

Answer:

32 oz blue paint.

Step-by-step explanation:

1 gallon= 132 oz

Convert 1 gallon to oz and set the proportions.

4 oz white/ 1 oz blue= 128 oz white/ x

Solve for x

128/4 = x

32=x

a wildlife manager determines that the function y=200x1.07* represents the deer population at a state park x years after the population is first counted. what is the population after 12 years? what is the initial population? what is the percentage rate? complete the table below.

Answers

Answer:

Table:

0,200

4, 262

8,344

12, 450

Population after 12 years is 450 deer

Initial population is 200 deer.

Step-by-step explanation:

You take the x in the table and plug it in as an exponent so you will need a calculator or multiple the 1.07 by that many times so 1.07 12 times multipled by itself. and the initial is 0 years so anything to the exponent of 0 is 1 so that show i got 200 for the x=0

Please help i need it for a test, don't mind the 2 points thing

Answers

Answer:

the answer can be anything greater then 1.35 but less then 1.4. so like 1.7

Step-by-step explanation:

please please my dyslexia is a pain.

Answers

Answer:

Area: 312

Perimeter: 75

Step-by-step explanation:

Area is l·w

20·16=320

two corners aren't filled

320-9-9=318

Add all the sides for perimeter

17+3+3+13+20+13+3+3=75

Answer:

281 m squared

Step-by-step explanation:

What we can first do is find the top length so we can do

17+3+3=23

then we can multiply it by the side length to get the whole rectangle

23*13=299

and we know each of the little areas is 9, and there are two so

9+9=18

and we can subtract that from the whole rectangle

299-18=281

Which statement about the picture below is true

For a polygon with 10 sides, which equation below represents the sum of the interior angles in the polygon?

sum = (360)(8) = 2880°
sum = (360)(10) = 3600°
sum = (180)(8) = 1440°
sum = (180)(10) = 1800°

Answers

Correct answer is:

1800°
the correct answer is 1440.

The equation to find the sum of interior angles in a polygon is s = 180(n-2), n being the amount of sides and s being the sum. To solve you would do s = 180(10-2), s = 180(8), and s = 1440. hopefully that makes sense haha. use the equation s=180(n-2) :))

Which value of x is a solution of the inequality?

−2x<−18


Question 5 options:

x=8

x=32

x=2

x=−27

Answers

Answer: 8 is what I’m guessing but when I did the math I got 9 so I don’t know if I’m wrong or u put the wrong number

Step-by-step explanation:

Im still not sure, can someone help me?

(I will give brainliest)
(NO LINKS OR FILES)

Please!

Answers

Answer: 9 associate property 8 commutative property

Step-by-step explanation:

Math, I need help. . .

Answers

Answer:

How do you do it? I can help solve

Step-by-step explanation:

I have no clue I’m in algebra I forgot everything in middle school

Find the lateral surface area of the cylinder. Round to the nearest hundredth if necessary.

Answers

Answer: 276.32

Step-by-step explanation:

2πr^2+2πrh

2(3.14)(4)^2+2(3.14)(4)(7)

2(3.14)(16)+2(3.14)(28)

2(50.24)+2(87.92)

100.48+175.84

276.32

The first answer is righ

You invested $600 in a savings account that earns simple interest. After 20 years the account had earned $720 in interest. What was the interest rate on the account? Your answer can be in decimal or percent form.

Answers

1% interest
Explain: in 20 years interest = $120 120 divided by 20 = 6 so u get $6 each year for $600 so therefore u would get $1 per $100
which equals 1%
hope that helps!

Function (f) is defined by the equation f(x)=3x-7. Find the value of c so that f(c) =20 is true.

Answers

Answer: C=9

explanation:

hope this helps

The value of c so that the function f ( c ) = 20 is when c = 9

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is given by

f ( x ) = 3x - 7

Now , substituting the value of f ( x ) = 20 , we get

when x = c

f ( c ) = 3c - 7

The value of the equation f ( c ) = 20

Substituting the value in the equation , we get

3c - 7 = 20

On simplifying the equation , we get

Adding 7 on both sides of the equation , we get

3c = 27

Divide by 3 on both sides of the equation , we get

c = 9

Therefore , the value of the variable c = 9

Hence , The value of c so that the function f ( c ) = 20 is when c = 9

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

can someone help me please ??

Answers

Answer: discount and a sales price is: 114.75

With total with tax is: 122.20875

Step-by-step explanation:

I got this by see what the price was with the discount and then adding on the tax

Answer and Step-by-step explanation:

Discount: 135(.15)=20.25

Sale price (without tax): 135-20.25=114.75

Tax (after discount): 114.75(.065)=7.45875 (7.46 rounded)

Total with tax: 114.75+7.46=122.21

Answer if you know
DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWERS
Thank you :)

Answers

I hope this helped plz award brainiest

Need help with this question

Answers

B) 4/9 is correct

Mark with crown!
There is 4 even numbers and 9 numbers in total, would you divide 9 by 4 get 0.44 repeating and turn that into a fraction

NEED HELP ASAP!! NO LINKS!!! OR U WILL BE REPORTED!! WILL GIVE BRAINIEST!!

Answers

Answer:

Y = 6,8          X = -6,3           Z = -2, -1

Y = 9,7           X = -3,2          Z = 1,-2

Step-by-step explanation:

For the equation y=4x−2, what is y when x=9? DO IT CORRECTLY PLS!

Answers

y= 4(9)-2
Y= 36-2
Y=34
Hope this helps

Answer:

y= 34

Step-by-step explanation:

Plug in 9 for X and solve

pls help me i need help ASAP

Answers

Answer:

B - 204

Step-by-step explanation:

Do 68 x 3 = 204

Answer: x=204

Step-by-step explanation:

HOPE THIS HELPS

im so confused pls help !!!!!

Answers

600 words
90 words divided 15% is 6 words for 1% so 6 times 100 is 600
hope this helps!

What is the total duration in minutes for the recorded lap times?

Sandra's Lap Times

(minutes)

2.4

2.3

1.7

1.8

2.7

2.6

1.9

1.5

1.2

1.4

1.3

1.4

A. 21.7
B. 22.0
C. 22.2
D. 22.5

Answers

Answer:

22.2

Step-by-step explanation:

add them

22.2
you add the numbers up. think of them like they have no decimal and then add the decimal at the end

Give the value of the digit 5 in each number.

45.916


1,277.5


950.44


6.157

Answers

Answer:

ones, tenth, tens, hundredth

Step-by-step explanation:

An urn contain 2 white marbles, 3 green marbles, and 5 red marbles. A marble is drawn and then replaced. Then a second marble is drawn. What is probability that the first marble was white and the second was green?

Answers

Answer:

1/5

Step-by-step explanation:

To find this you would need to multiply the probability of pulling a white marble to the probability of pulling out a green marble.

1)First you would need the probability of pulling out a white marble. There are 10 marbles in total and out of those 2 are white. So the probability of pulling out a white marble would be 2/10. If you simplify that you would get 1/5 for the probability of pulling out a white marble.

2)Next, you would find the probability of pulling out a green marble. Using the same process that we used to find the probability of pulling out a white marble, we would find the answer to be 3/10. All that we did here was green marbles/total marbles. By filling that in we got 3/10 for the probability of pulling out a green marble.

3)Now all that is left is doing probability of pulling a white marble × probability of pulling out a green marble. This would be 1/5 × 3/10. After solving the answer would be 3/15 which we would simplify down to 1/5 as our final answer.

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