Mathematics Middle School

Is the given value a solution to the equation?



4n − 3 = −2n + 9



n = 2

Answers

Answer 1
Yes 8-3=-4+9. 8-3=5. -4+9=5
Answer 2

Yes, n = 2 is the solution of the equation 4n − 3 = −2n + 9.

What is equation modelling? What is a mathematical equation and expression?Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.

Given is the equation -

4n − 3 = −2n + 9

We have -

4n − 3 = −2n + 9

For n = 2, we can write -

4 x 2 - 3 = - 2 x 2 + 9

8 - 3 = 9 - 4

5 = 5

So, n = 2 is the solution of the equation 4n − 3 = −2n + 9.

Therefore, yes, n = 2 is the solution of the equation 4n − 3 = −2n + 9.

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Related Questions

A submarine starts at 0 units and has groups of 3 floats and groups of 4 anchors attached. Which expression would make the submarine sink the lowest?
A : -(5)(3)+(2)(-4)
B :(5)(3)-(2)(-4)
C: -(5)(3)-(2)(-4)
D: (2)(3)+(5)(-4)
E: -(2)(3)-(5)(-4)
What will its final position be?

Answers

Answer:

The lowest point would be A.

Step-by-step explanation:

A. has the value of -23

7m - 17 = - 24
what is m?

Answers

Answer:

-1

Step-by-step explanation:

I'm not sure so sorry if u get this wrong. BUT Better than nothing right?....

Order Of operation.


the school raised money for new playground equipment. They sold candy bars for 2$ each. They Sold 143 on Monday, 200 on Tuesday, and 56 on Wednesday. How Much Money did they raise?

Answers

Answer:

I think the answer is $798

Step-by-step explanation:

143×2=286

200×2=400

56×2=112

286+400+112=$798

They earned $798

The first thing you have to do in order to find your answer is add up the total amount of candy bars sold for the total 3 days. Then once you have that added up, multiply it by 2 (since they were worth 2 dollars each) and you will come up with $798 total.

-Ɽ3₮Ɽ0 Ⱬ3Ɽ0

My head is mush right now

Answers

your answer should be -24

ANSWER THIS QUESTION FOR BRAINLEST AND 10 POINTS

Answers

The answer to the question is (0,5)

What value of x makes this equation true? -100 + x = -190

a. -10
b. 10
c. -90
d. 90

Please show work.

Answers

Answer:

-90 because it is

Step-by-step explanation:

its -90

Answer:

C

Step-by-step explanation:

x=-190+100

=-90,C

factor the expression of the expression cannot be factored write simplified 2x-15

Answers

Answer:

So Im basicaly just replying to get points sorry

Look i sure someone will answer it soon good luck buddy I have faith in you

Step-by-step explanation:

The answer would be 2x-15 because it cannot be factored, and it can’t be simplified either because there are no like terms.

The numbers 1-6 are written on slips of paper and placed in a bag. Megan draws two numbers in a row without replacement. What is the probability of Megan selecting an even number followed by a 3?

A) 1/6

B) 1/10

Answers

I’m pretty sure it would be 1/6

The probability of Megan selecting an even number followed by a 3 will be 1/10. Then the correct option is B.

What is probability?

Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.

Then the probability is given as,

P = (Favorable event) / (Total event)

Paper slips with the numbers 1-6 are collected in a bag. Without substitution, Megan draws two numbers consecutively.

The probability is given as,

P = (1/6) x (3/5)

P = (1/2) x (1/5)

P = 1/10

The probability of Megan selecting an even number followed by a 3 will be 1/10. Then the correct option is B.

More about the probability link is given below.

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AIIIIIIIIIIIII READ DIS!!!!!!!

Answers

Answer:

Sales tax: $2.37

Subtotal: $16.95

Step-by-step explanation:

$24.95×0.095=$2.37 sales tax

$1.61÷0.095=$16.9473 or $16.95 subtotal

Help will give brainliest.

Answers

Answer:

6x =48 for number A

which statement correctly compares the function shown on this graph with the function y= 5x + 5?

Answers

Answer:

B.

hope this helps :)

HELP PLEASE GIVING BRAINLIEST!!!

Answers

He Is Way off if each paper was about 0.015...

500 pages would be about 7 inches, therefore he is wrong.

25−m if m=9
Enter the correct answers in the boxes.

25 −
=

Answers

Answer:

16

Step-by-step explanation:

If m=9 then you replace the m in the equation and minus 9 from 25 which then equals 16.

I can’t see anything on the thing comment me and give me the question I don’t understand that

These two right cylinders have the same height, 25 centimeters. The radius of the smaller cylinder is 5 centimeters and the radius of the larger cylinder is 3 times greater than that of the smaller cylinder. What is the ratio of the volume of the larger cylinder to the volume of the smaller cylinder?
(20POINTS)

Answers

first cylender

Step-by-step explanation:

BRAINLIEST FOR THE BEST!! No fake answers please, points in a random website don't matter only if you try your best!! :DD
By the time Joaquin was 95 years old, his height decreased by 20%. If he was 6 feet tall when he was 30 years old, how much weight did he lose?

1) Put the numbers onto the double number line
2) Write the % sentence that represents the question
3) Find the answer to the question (show your work!)

Answers

Answer:

Joaquin lost exactly 1.2

1 foot

2 inches so he would be 5 foot 10 inches 5.10

Step-by-step explanation:

20%÷6=1.2

There are 1,150 students at Houston Middle School. 34% of the students are enrolled in Theatre Arts. How many students are enrolled in Theatre Arts?

Answers

Answer:

391

Step-by-step explanation:

391 students because 1150-34%=759 then you would do 1150-750=391

Find the value of x





A. 25
B. 35
C. 55
D. 10

Answers

Answer:

Step-by-step explanation:

c

.
Find the percent error in this situation:
Experimental value: 16.5 sec
Theoretical value: 17.1 sec

Answers

Answer: 3.51%

Step-by-step explanation:

Percent error is theoretical minus experimental, divided by the theoretical, and multiplied by 100.

[tex]error=(\frac{(T-E)}{T} )*100[/tex]

[tex]error=(\frac{(17.1-16.5)}{17.1} )*100[/tex]

= 3.51%

I- Please someone help me -_- I hate math so much

Answers

Answer:

5 & 13

Step-by-step explanation:

a. -9 + 4 = -5

Absolute Value = 5

b. Absolute value of -9 is 9

9 + 4 = 13

hope this helps :)

5 and 13
9-4 because you change them both to the same,so you end with 5
9+4 because you flip Everything and end up with 13
:) hope that helps

6n + 6 = 42 what is the answer to this?

Answers

Answer:

n=6

Step-by-step explanation:

Answer:

n = 6

Step-by-step explanation:

6n + 6 = 42

6n + 6 - 6= 42 - 6

6n = 36

6n ÷ 6 = 36 ÷ 6

n = 6

Most kids eat school lunch, but 20% of the students bring their own lunch.

if there are 450 students in the school, how many bring their own lunch?

Answers

Answer:

90 students bring their own lunch

✧･ﾟ: *✧･ﾟ:*  90! Hope this helps! ♡  ✧･ﾟ: *✧･ﾟ:*

Fine the y-intercept of the line using y=x-4

Answers

Answer:

y-intercept is -4.

Step-by-step explanation:

Plugging in y=x-4 into the graphing calculator on Desmos shows the line pass through -4 on the y-axis.

The intercept is y=-4

solve for x with an explanation pls

Answers

Answer: 9

Step-by-step explanation:

Use Pythagorean's Theorem for a right triangle.

[tex]a^2+b^2=c^2[/tex]

[tex](\sqrt{63}) ^2+x^2=12^2\\63+x^2=144\\x^2=81\\x=9[/tex]

X=9

A squared + b squared = c squared

C is the hypotenuse (the side opposite of the right angle)

X*2 + square root of 63 squared = 12*2
Squaring 63 would cancel out with the square root. You are left with x*2 + 63 = 144. 144-63= 81. X*2=81 ; square root both sides. You are now left with x=9

Which shows the prime factors that 112 and 86 share? A 2 B 2x2 C 2x2x7 D 2x2x2x2x2x7x43

Answers

Answer:

The Prime Factor Is 2

Step-by-step explanation:

Prime of 2 maybe.....

what is the answer ?
6 + 3u =

Answers

Answer:

You cant add them so it is probably a trick question.

Step-by-step explanation:

We would need to determine “u”
With PEMDAS, we would multiply 3 by u, and then add six.
If there is no u, variables are always at 1 by default. If there is absolutely no u, the answer would be 9.

help meeeeeeeeeeeeee​

Answers

Answer:

Area 60 po is 32

Step-by-step explanation:

First u do 6x10 which equal 60area is a he whole and perimeter is what each side and add all sidesis and the perime Is 32So the po is 32 and the . Is 60 hope it. Helps

60 yd^2 32 yd

Area = lw Area = 10 x 6
Perimeter = 2 ( l + w ) Perimeter = 2 ( 10 + 6 )

HELP PLS !! Are the triangles below acute, obtuse, or right? Triangle A Triangle B Triangle C Triangle D 55° 60° 80° 115 30° 35° 30 50 35° 50° O Acute O Obtuse Right Acute Obtuse Right Acute O Obtuse O Right O Acute Obtuse Right​

Answers

Answer:

Triangle A- Right   Triangle B- Acute   Triangle C- Obtuse   Triangle D- Right

Step-by-step explanation:

Triangle A has one right angle.

An acute-angle triangle is triangle B.

The obtuse angle triangle is Triangle C.

A right-angle triangle is Triangle D

What is the way of classifying a triangle?

If a² + b² < c² then it is an acute angle triangle.

If a² + b² = c² then it is a right-angle triangle.

If a² + b² ≥ c² then it is an obtuse angle triangle.

We know angles less than 90° is called acute angle and angles greater

than 90° is an obtuse angle.

From the given diagram and mentioned angles in the triangles, we conclude that,

Triangle A is a right-angled triangle.

Triangle B is an acute-angle triangle.

Triangle C is an obtuse angle triangle.

Triangle D is a right-angle triangle.

learn more about triangles here :

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What is the prime factorization of 88?
A.8✖11
B.2✖4✖11
C.4✖4✖11
D.2✖2✖2✖11

Answers

The answer is d
Hope this helps :)

Answer:

D. 2✖2✖2✖11

Step-by-step explanation:

 To get the Prime Factors of 88, you divide 88 by the smallest prime number possible. Then you take the result from that and divide that by the smallest prime number. Repeat this process until you end up with 1.

88 ÷ 2 = 44

44 ÷ 2 = 22

22 ÷ 2 = 11

11 ÷ 11 = 1

Again, all the prime numbers you used to divide above are the Prime Factors of 88.

The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and length of this rectangle?
PLS HELP ASAP!!!!!!!!!!!!!!!!!

Answers

Answer:

W=2 1/4 cm

L=5 5/12 cm

Step-by-step explanation:

2L+2W=15 1/3

L=W+3 1/6

substitute

2(W+3 1/6)+2W=15 1/3

2W+6 1/3+2W=15 1/3

4W+6 1/3-6 1/3=15 1/3-6 1/3

4W=15 1/3-6 1/3

4W=9

W=2 1/4

L=2 1/4+3 1/6=2 3/12+3 2/12=5 5/12

please i will give brainly

Answers

A:x+3=11
B:X(to the power of 3) + 9
C:x-7=7
D:x(to the power of 3) = 3
Equation for a
3x+11
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