Half of a number x is equal to 9 less than 2 times that same number. What is the
number

Answers

Answer 1

Answer:

[tex]x = 6[/tex]

Step-by-step explanation:

Analyzing the statement one after the other:

Half a number x: [tex]\frac{1}{2}x[/tex]

Equals to: [tex]=[/tex]

9 less than twice that same number: [tex]2x - 9[/tex]

Bring them together, we have:

[tex]\frac{1}{2}x = 2x-9[/tex]

Collect Like Terms

[tex]\frac{1}{2}x - 2x= -9[/tex]

[tex]\frac{x}{2} - 2x= -9[/tex]

[tex]\frac{x - 4x}{2} = -9[/tex]

[tex]\frac{ - 3x}{2} = -9[/tex]

Multiply through by 2

[tex]2 * \frac{ - 3x}{2} = -9 * 2[/tex]

[tex]- 3x = -18[/tex]

Divide through by -3

[tex]x = 6[/tex]


Related Questions

is 20 a prime or composite number.​

Answers

Answer: It is a composite number since it has more factors than just itself and 1.

Step-by-step explanation:

1x20=20

2x10=20

4x5=20

Answer:

composite

Step-by-step explanation:

It has factors other than 1 and 20; Its factors are 1, 2, 4, 5, 10, and 20.

HTH :)

Be my best frienddd Ill make BrainLess!
Which of the following organic compounds is the main source of energy for living things?

a.

carbohydrates

c.

nucleic acids

b.

lipids

d.

proteins

Answers

Answer:

A

Step-by-step explanation:

HOPE THIS HELPS :)

I need help! Thank you :)

Answers

Answer:

parallel

Step-by-step explanation:

Answer:

Parallel

Step-by-step explanation:

If you graph these on a graph the beginning part is the same however the second part (the 2 and 30) are different which would just show how far to space the lines because those are  the y-intercept and the fraction part is the slope

Please help ASAP Thank you

Answers

Answer:

we need the whole question

Step-by-step explanation:

post the whole question

SOMEONE JUST GIVE ME THE ANSWER

Answers

Answer: I thought I saw options in the corner could you give me the options? And then I'll give my answer in the comment box;) no worries we'll figure it out!! :)

Step-by-step explanation:

Answer:

Area is 68x^2 the missing number by 3x is 5 and the missing number at the bottom is 4.

Step-by-step explanation:

Find the measure of the missing angle.

Answers

Answer:

i think 32

Step-by-step explanation:

subtract 90 and 58 from 180

A number a is a root of P(x) if and only if the remainder, when dividing the polynomial by x+a, equals zero.
a. true
b. false

Answers

Answer:

Pretty Sure False.

Answer: false

Step-by-step explanation: a pex

I need help I don’t understand

Answers

Answer:

x=50

Step-by-step explanation:

A= 30+2x

B= x

Supplementary angles are angles that always add up to 180 degrees.

therefore, A + B=180 degrees

30 + 2x + x = 180: Now we solve

30 + 3x =180

subtract 30 from both sides

3x=150

divide by 3

3x/3 = 150/3

x= 50

is 7.2 a rational number​

Answers

Step-by-step explanation:

A decimal is a number that represents a fractional part of a whole. For example, the decimal 0.25 represents 25/100. Numbers with decimals are not integers because an integer is defined as a whole number with no fractional part.

What is the value of x?
-5x – 2 = -13

Answers

Answer:

2.20

Step-by-step explanation:

So add +2 both sides that cancels 2 and that makes it -11.00 now divide it by -5 and x is by itself

So when you divide it x=2.20

Hope that helps

Answer:2.2 there you go have a nice day

find the value of b (please help quick)

Answers

Answer:

B=6

Step-by-step explanation:

It is very simple.

Please help so I can finally finish my hw

Answers

Answer:

That's confusing

Step-by-step explanation:

Answer:

I am very sorry I don’t know how to do this sorry maybe next time

Step-by-step explanation:

divide nine by three, then subtract two double the results

Answers

Answer:

2

Step-by-step explanation:

hope this helps

Answer:

-3

Step-by-step explanation:

because nine divided by 3 is 3 then subtract 3 which is 0 then subtract 3 again which is -3

69 answer this

420
69
420

Answers

do you want us to add, subtract, multiply, divide...what..?

Answer:

the answer is 420 666 6969

Step-by-step explanation:

gil borrows $8000 for college expenses. he will pay a total of $2280 back in interest after 6 years. what was his interest rate

Answers

Answer:

R = 41.8129%/year

Equation:

r = (1/t)(A/P - 1)

Calculation:

Solving our equation:

r = (1/6)((8000/2280) - 1) = 0.41812865

r = 0.41812865

Converting r decimal to R a percentage

R = 0.41812865 * 100 = 41.8129%/year

The interest rate required to get a total amount, principal plus interest, of $8,000.00 from simple interest on a principal of $2,280.00 over 6 years is 41.8129% per year.

Step-by-step explanation:

Answer:

I believe it is 4.75 %

Step-by-step explanation:

2,280 × 100 = 228,000

228,000 / 8,000 = 28.5

28.5/6 = 4.75 %

The length of each square on the grid represents 1 cm. The scale
from an actual rectangle to the drawing is 24 in. to 1 cm. Make a
new scale drawing where each centimeter represents 16 in.
Label the length and width of your drawing in centimeters.

Answers

Answer:

40.64 cm x 40.64 cm

Step-by-step explanation:

The directions say that 1 centimeter = 16 inches.

1 inch = 2.54 centimeters

Multiply by 16.

16 inches = 40.64 centimeters

We know each length of the square is 1 cm or 16 inches, according to the above.

(btw problem says rectangle, a square can be a rectangle.)

Complete the statement.

Two integers that have an absolute value of 10 are...and...

I will give a brainlist

Answers

Answer:

10 and -10

Step-by-step explanation:

Absolute value is the distance of a number from 0. Absolute value must be positive because you can not a have a negative distance from 0. The two numbers that have a distance of 10 from 0 on the number line are 10 and -10.

Answer:

The symbol for absolute value is two vertical lines. Since opposites are the same distance from the origin, they have the same absolute value. For example, the absolute value of "negative 10" is ten, and the absolute value of "positive 10" is also 10.

Step-by-step explanation:

PLEASE HELP!!

Enter numbers into the table so that the paired values are in a proportional relationship.

x 2 6 8 (?) 20
y (?) 3 4 6 10

fill the (?) in.

Answers

Answer: x is, 2 6 8 10 20-- i think

Step-by-step explanation: y is, 2 3 4 6 10

Answer:

ya he's rite

Step-by-step explanation:

pls help ill mark brainliest​

Answers

Answer:

No solution or B

Step-by-step explanation:

Multiply eq1 by 3.

3y=18x+6

3y-18x=12

Regroup:

18x-3y=-6

-18x+3y=12

Add:

0=6???

Impossible

So no solution.

Hope this helps plz mark brainliest :D

Answer:

No solution

Step-by-step explanation:

First we need to solve the equations.

I'll use the combining method

To do the combining method you need to get one of the variables in the first equation to be the negative correspondent to the same variable in the second equation.

(Ex:

If there was 2x in the first equation we would want there to be -2x in the second so they cancel out.)

y=6x+2

subtract 6x from each side to get the variables to line up

y-6x=2

3y-18x=12

To get -6x to equal 18x, we will multiply everything in the first equation by -3

-3y+18x=-6

3y-18x=12

Now combine the two terms

-3y and 3y cancel out

18x and -18x cancel out

-6+12=6

We are left with 0=6.

0 does not equal 6 so there is no solution.

Find the missing part of the triangle.​

Answers

I think it’s 8in because the x side is congruent to the 8in side and they are the same lines on the triangle. So I think 8in:)

Guys quickly what is 1% of 75?

Answers

Answer:

the answer is 0.75

...................................

Isn’t it .75 ??

I’m not sure I forgot how to do this

What number when multiplied by 113 has a product of 1

Answers

Answer:

3/4

Step-by-step explanation:

Answer:

1/13

Step-by-step explanation:

copied of that person

Answer this for brainest :)

Answers

Answer:

-11/36

Step-by-step explanation:

Answer:

-11/36

Step-by-step explanation:

(-1/3)^2 is equal to 1/9

5/6(-1/2) is equal to -5/12

Adding them, we get 1/9 - 5/12

With a common denominator, this is 4/36 - 15/36, which gives us an answer of -11/36

I would appreciate brainliest, have an amazing day!

In 91.72 which digit is in the tens place?​

Answers

Answer:

9

ten's go for the number 10

91=9-1 9 in 90 so its 9.

so therefore your answer is 9

Step-by-step explanation:

An animal shelter spends $3.00 per day to care for each cat and $5.00 per day to care for each dog. Penelope noticed that the shelter spent $69.00 caring for cats and dogs on Tuesday. Penelope found a record showing that there were a total of 17 cats and dogs on Tuesday. How many cats were at the shelter on Tuesday

Answers

Answer:

x=16

Step-by-step explanation:

the sum of a number and 6 is no less than 31​

Answers

Answer:

n + 6 > 31

Step-by-step explanation:

A math teacher graded 45 problems in
3
5
of an hour. At that rate, how many problems can she grade in 1 hour?

Answers

75 problems
3/5 of an hours is 36 minutes you can then do 45 over 36 mins and set it equal to x over 60 mins then you do 45 times 60 which equals 2700 then you divide 2700 by 36 and you get 75

198.8 grams ≈ ounces

Answers

Answer:

7.0124636 ounces

Step-by-step explanation:

Im really sorry if this is wrong but I think it's right

The midpoint of AB is M(-6,1). If the coordinates of A are (-5,7), what are the
coordinates of B?

Answers

Answer:(7,-3)

Step-by-step explanation:

The answer is 73 only if u subtract


The difference of the squares of two positive consecutive even integers is 84. Find the integers.

Answers

Answer:

The two integers are 20 and 22.

Step-by-step explanation:

Let x be the first integer.

[tex](x+2)^{2}-x^{2} = 84\\x^{2} +4x+4-x^{2} = 84\\4x = 80\\x = 20[/tex]

Applying the difference of squares, and solving the equation, it is found that the numbers are 20 and 22.

----------------------

The two consecutive even integers are: n and n + 2.The difference of the squares is given by:

[tex]D_s = (n+2)^2 - n^2[/tex]

Expanding the difference:

[tex]D_s = n^2 + 4n + 4 - n^2[/tex]

[tex]D_s = 4n + 4[/tex]

----------------------

The difference is 84, thus:

[tex]D_s = 84[/tex]

Now, we solve for n.

[tex]4n + 4 = 84[/tex]

[tex]4n = 80[/tex]

[tex]n = \frac{80}{4}[/tex]

[tex]n = 20[/tex]

----------------------

Thus, the numbers are: [tex]n = 20[/tex] and [tex]n + 2 = 20 + 2 = 22[/tex]

A similar problem is given at https://brainly.com/question/5453470

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