21=8+x (solve for x)

Answers

Answer 1

Answer:

X=13

Step-by-step explanation:

Answer 2

Answer:

x=13

Step-by-step explanation:

21=8+x

Swap sides so that all variable terms are on the left hand side.

8+x=21

Subtract 8 from both sides.

x=21−8

Subtract 8 from 21 to get 13.

x=13


Related Questions

Help? I’ll give brainliest

Answers

9514 1404 393

Answer:

  10,466.7 in^3

Step-by-step explanation:

The volume of a cone is given by ...

  V = (1/3)πr^2·h

where r is the radius and h is the height. Using your numbers, we have ...

  V = (1/3)(3.14)(20 in)^2·(25 in) = 10,466.7 in^3

_____

A more accurate value of π will give a different result.

If you use 104 kiloliters of water per year, approximately how many liters of water do you use in a day?

2,000 liters
0.28 liters
285 liters
85 liters

Answers

Answer: 285 liters

Explanation: I did 104,000 divided by 365 on a calculator and it gave me 285

"Everyone has a financial plan, but not everyone has financial goals." Explain what you think this

Answers

Answer:

Everyone has financial a plan, but not everyone knows what to do to make the plan work. Planning is different from putting it into action.

how do I find 16% of 575

Answers

Answer:

92

Step-by-step explanation:

The easiest way for me to find any percentage of a number is to find what 1% is and then multiply by the % amount. So to answer this question I would do 575/100 which is 5.75 and this is 1% then multiply 5.75 by 16 to get 92 so a 16% of 575 is 92. (Double check to make sure I'm correct)

Mila bought a computer with a price tag of $1,200.
After tax the total was $1,284. What was the rate of the
tax?

Answers

Answer: 7%

Step-by-step explanation:

What is 240 more than 100

Answers

Answer:

340

Step-by-step explanation:

240 + 100 = 340

We are looking for a new number which is 240 more than 100.
We will get the new number by adding 240 to 100.
We write it down as:
100+240=340 so the answer is 340

Find the measure of the missing angle.
а
54°

Answers

Answer:

a = 36°

Step-by-step explanation:

a + 54° = 90°

a = 90° - 54°

a = 36°

Write the following ratio using two other notations. to Use only the numbers above (not any others). Notation one: Notation two: 9 fration 8

Answers

Answer:

9:8 and 9 to 8

Step-by-step explanation:

Hank cut his pizzainto 10 pieces and ate 6 of the pieces.Rose cut her pizza into 5 pieces and ate the same amount as hankShow this on a drawing​

Answers

Answer:

well you would have to draw two pizzas or circles

Step-by-step explanation:

what you would to is draw lines to separate one of them into 10 peices and the other one into 5. You can shade in the 6 peices Hank ate and then shade the same amount of pizza on Roses. Hope this helped!

WILL MARK BRAINLIEST!!

solve for all values of x.
pls show some work (not all is necessary, but appreciated)

if both problems are done, i’ll mark you the brainliest:)
and i hope you have an amazing day

Answers

15/10 = 18-x/x is the ratio of the larger to the smaller triangle

Cross multiply:
15x = 10(18 - x)
15x = 180 - 10x
25x = 180
x = 7.2

Plug back in to check
15/10 = 1.5

18-7.2/7.2 = 10.8/7.2 = 1.5 :)


12x + 2y = 6

A. solve for y

B. What is the slope and what is the y-intercept?

Answers

Answer:

y=3

B.Slope is -6 Y intercept is 0.5

Step-by-step explanation:

What is the quotient of 6.16 divided
by 1.1?

Answers

Answer:

5.6

Step-by-step explanation:

What is the sum of 5/7 + 5/6?

A. 10/42

B. 10/13

C. 1 & 23/42

D. 6 & 5/42

Answers

Answer:

C. 1 & 23/42

Step-by-step explanation:

Well when we add it we get 65/42 and we need to    

simplify it and we get 1 & 23/42.

Answer:

C

Step-by-step explanation:

which symbol will make the following statement true? |−27|_____ 19

Answers

Answer:

the greater than symbol(>)

Step-by-step explanation:

the absolute value of -27 is 27. 27>19

Find the value of x.
4
X
25
10
x = [?]

Answers

Answer:

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

10/4 x 25/x

Cross multiply and it will give you 100/10x

Divide and get 10

federal income tax, 4% for state income tax and 7.65% for Social Security and Medicare taxes, Calculate his net pay and how much he will pay in taves each paycheck. part A. Convert the annual pay to biweekly. part B how much money will he pay in taxes each paycheck? part C what is the net pay​

Answers

Answer:

what is taves

Step-by-step explanation:

What absolute value represents a number greater than |0.37|

A: |-0.38|

B: |-0.35|

C: |-0.37|

D: |-0.39|

No wrong answers!

Answers

it’s going to be A and D

Find the area of a square
with a side length of 3/4

Answers

Answer:

area of square

= side × side

= 3/4 ×3/4

=9/16

Martina is 3 inches less than twice as tall as her little brother.


In the space below, write an expression for Martina’s height. Then, use the expression to find Martina's height if her little brother is 28 inches tall.
Help ASAP

Answers

Answer:

m=2x-3

Step-by-step explanation:

2(28)-3

56-3

53 inches

Is height always a statistical subject

Answers

Answer:

It Is!

Step-by-step explanation:

"For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question because one anticipates variability in students' ages."

I subtract from it.The answer is 8

Answers

Answer:

To check your work, 8 + 8 is 16

Step-by-step explanation:

need bwainlist to maybe u can help out chika???

Cesar bought 20 boxes of pizza and gave 14 nosed away what percentage is left

Answers

Answer:

30%

Step-by-step explanation:

14/20 is 70% he gave away, so 30% is left.

Answer:

30%

Step-by-step explanation:

I hope this helps :)

Write the equation 12 = -3x + 6 in the form ax + b = c, with c = 12. What are the values of a and b?

Answers

sorry I don't know Ab = cd and bc = ad

Using SAS postulate triangles formed by ABC = abd

Opposite sides are equal and each angle is 90 degrees so by definition it is a rectangle.Ab = cd and bc = ad

Using SAS postulate triangles formed by ABC = abd

Opposite sides are equal and each angle is 90 degrees so by definition it is a rectangle.

Answer:

I think the answer is .

Step-by-step explanation:

C= 12

Hope this helps

y = - 2x + 1
2x - 2y = 4
Solve systems of equations by substitutions

Answers

Answer:

x= 1

y= -1

Step-by-step explanation:

y=-2x+1

2x-2y=4

substitute for y

2x-2(-2x+1)=4

reduce

2x+4x-2=4

6x=6

x=1

y= -2(1)+1

y= -1

Does anyone know wha this could be

Answers

The complex conjugate of 5-4i is 5+4i

out of 75/6 is 72%. (Write as a fraction in simplest form.)

Answers

Answer:22%

Step-by-step explanation:

The simplest form of the total of 75/6 would be 432 / 7500.

What is the percentage?

A percentage is a minimum number or ratio that is measured by a fraction of 100. Suppose the value of which a thing is expressed in percentage is "a' Suppose the percent that considered thing is of "a" is b%

Then the percent; per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Given that out of 75/6 is 72%.

Therefore, it will be written as;

x of 75/6 = 72%.

We need to find the value of total x.

x of 75/6 = 72%.

x × 75/6 = 72%

x × 75/6 = 72/100

Cross multiplication;

x = 72/100  ×  6/75

x = 432 / 7500

x = 0.0576

Hence, the simplest form of the total of 75/6 would be 432 / 7500.

Learn more about percentages;

brainly.com/question/24159063

#SPJ2

The measure of Angle D is
degrees.
O=41 degrees

Answers

Answer:

49°

Step-by-step explanation:

O=41° and G=90° (because it is a right angle).  The sum of the interior angles of a triangle is 180°.  So, add the known angles, 41°+90°=131°.  Since the sum of all three angles needs to be 180°, subtract the known angles from the total, 180°-131°=49°, to find the unknown angle.  

The angle D in triangle OGD measures 49 degrees.

To find the measure of angle D in triangle OGD, we can use the fact that the sum of the angles in a triangle is always 180 degrees.

Given that angle O is 41 degrees and angle G is 90 degrees, we can substitute these values into the equation:

Angle O + Angle G + Angle D = 180

41 + 90 + Angle D = 180

131 + Angle D = 180

Now, we can solve for angle D by subtracting 131 from both sides:

Angle D = 180 - 131

Angle D = 49

Therefore, angle D in triangle OGD measures 49 degrees.

To know more about triangle:

https://brainly.com/question/2773823


#SPJ6

4) The length of a rectangle is 7 inches more than the width. The perimeter of the rectangle
is 178 inches. Find the width of the rectangle.

Answers

Answer:

41 inches

please mark brainliest

Step-by-step explanation:

l= 7+w

perimeter = 2(l+w) =2(7+w +w)= 2(7+2w)= 14+ 4w

178= 14+4w

4w =178-14= 164

w= 164/4 = 41 inches

Add 3/10+ 33/100+ 1+ 7/10 ( in fraction form) (this is 4th grade not middle school) please help​

Answers

Step-by-step explanation:

Please refer to the attachment

What is the value of the expression 7x (5-3) + (100 ÷ 5)

Answers

Answer:

Step-by-step explanation:

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