I don't know how to evaluate an algebraic expression. How can I evaluate an algebraic expression?

Answers

Answer 1

Answer:

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. if it's 6÷x=3, do 6÷3=2 to get the value of x. 6÷2=3.


Related Questions

VW = WX = YW = ZX = VX = view image attached thank youuu!

Answers

Answer:

assuming this is a rectangle:

VW=31

WX=19

YW=36.36

ZX=18.18

VX=36.36

Step-by-step explanation:

VW=VX

VW=31

WX=VX

WX=19

YW^2=19^2+31^2

YW^2=361+961

YW^2=1322

YW=36.36

ZX=1/2VX

ZX=18.18

VX=YW

VX=36.36

The measures of the rectangle are

a) The measure of VW = 31

b) The measure of WX = 19

c) The measure of YW = 36.36

d) The measure of ZX = 18.18

e) The measure of VZ = 18.18

What is the diagonal of a rectangle?

The diagonal of a rectangle is calculated by the formula

From the Pythagoras Theorem , The hypotenuse² = base² + height² , and

Diagonal of a Rectangle = √ ( Length )² + ( Width )²

Given data ,

Let the rectangle be represented as VWXY

Now , the diagonals of the rectangle are VX and WY

Substituting the values in the equation , we get

The measure of VY = 19

The measure of XY = 31

Now , for a rectangle the opposite sides are congruent

So , the measure of VY = measure of WX

And , the measure of XY = measure of VW

On simplifying the equation , we get

The measure of WX = 19

The measure of VW = 31

And , the diagonal of the rectangle = √ ( Length )² + ( Width )²

Substituting the values in the equation , we get

The diagonal of the rectangle YW = √ ( 31 )² + ( 19 )²

The diagonal of the rectangle YW = √ ( 961 + 361 )

The diagonal of the rectangle YW = 36.359 ≈ 36.36

And , the measure of VX = measure of YW = 36.36

Now , the measure of ZX = measure of VZ = measure of VX / 2

So , the measure of ZX and VZ = 36.36 / 2 = 18.18

Hence , the diagonal of the rectangles is 36.36

To learn more about diagonals of the rectangle click :

https://brainly.com/question/13583275

#SPJ2


Rachael is 12 years older than Kayla. If the sum of their ages is 48, how old are they?

Answers

Answer: Rachel is 30 years old and Kayla is 18

Step-by-step explanation:

I got the answer like this:

What plus what equal 48. 24 + 24

So to get the answer I subtracted one from the first 24, and added one to the second 24.

I did this until they were 12 numbers away. This gave me their age.

The graph shows the number of points, y, a player earns in a balloon game
based on the number of balloons popped, X.

Answers

y = 25x
Slope is rise over run or (y2-y1)/(x2-x1)
(25-0)/(1-0)=25
No b value in y=mx+b because the origin is at 0.

As an estimation we are told 5 miles is 8 km.
Convert 22.3 km to miles.

Answers

Answer:

13 miles lol that's what I Kno

What is the equation of a line with a y-intercept of --3 and a slope of 5?

Answers

Answer:

y=5x-3

Step-by-step explanation:

Isaac buys 17 anti-pollution masks for £5.25 each.
He pays with five £20 notes.
a) How much change should Isaac get?
Write your answer in £.

Answers

Answer:

£10.75

Step-by-step explanation:

£5.25 x 17 = 89.25

5 £20 notes is £100

£100 - £89.25 = £10.75

Answer: £10.75

Step-by-step explanation:

£5.25 x 17 = 89.25

5 £20 notes is £100

£100 - £89.25 = £10.75

A cylindrical water container has a diameter of 4cm and a height of 36mm. what is the total surface area of the water container in cm?

No wrong answers else I will report it, if correct I will mark you as a brainlister & follow you.

Answers

Answer:

477.52cm^2

Step-by-step explanation:

Brainliest or I will report you

Jason bought 3 shirts that each cost the same. He had a coupon for $10 dollars off and he spent $65 altogether. Which equation can be used to find the cost of each shirt?

Answers

Answer: $18.33

Step-by-step explanation:

c = cost

c = (65-10) / 3

c = 18.3333333333

c = $18.33

1. During
a period, a music station played 21 minutes of commercials
which was 30% of the total time. What is the duration of the
total time of music station under consideration.​

Answers

Answer:

10 minutes

Step-by-step explanation:

tell me why ain't nothing but a heartache

Aspirin is sold in boxes of 24 for $3.69, 50 for $5.49, 100 for $8.29, and 150 for $11.99. Which box has the best unit rate.

Answers

Answer:

150 for 11.99

the pills in this box are the cheapest

Answer:

150 for $11.99

Step-by-step explanation:

If the diameter of a tree trunk is growing 14 1 4 inch each year, how many years will it take for the diameter to grow 8 inches?

Answers

Answer:

I think its 1/4 or something like that

if it is 1/4 inches per year:32 years

if it is 14 inch per year:4/7 years

Step-by-step explanation:

Write the equation of a line that passes through (4,5) with a slope of 3

Answers

Answer:

y = 3x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 3 , then

y = 3x + c ← is the partial equation

To find c substitute (4, 5) into the partial equation

5 = 12 + c ⇒ c = 5 - 12 = - 7

y = 3x - 7 ← equation of line

please help me on this will give you brainliest!!

Answers

Answer:

∠3 would be 134° because it is alternate interior to ∠5

∠2 would be 46° because it is supplementary to ∠1

Hope this helped

Write an equation of a line that passes through (2,3) and has a slope of 1/4?

Answers

y = mx + c
m is the slope

y = (1/4)x + c

Replace coordinates (2,3) to find c

3 = (1/4)*2 + c

c = 3 - (1/2)

c = 5/2

Equation of line is y = (1/4)x + (5/2)

Or you can multiply the whole equation by 4 to get rid of the fractions. You’ll get 4y = x + 10

(3x²+4x-1)+(-2x²-3x+2)

Answers

Answer:

x

Step-by-step explanation:

The answer is: 3x^2 +x-3

Please needed as soon as possible thank you

Answers

Answer:

43. [tex]= \frac{.0045}{100}[/tex]

44. [tex]4\frac{9}{10}[/tex]

45. 8

Step-by-step explanation:

43. 0.45% = .0045

      [tex]= \frac{.0045}{100}[/tex]

44. [tex]\frac{1}{2}[/tex] • [tex]9\frac{4}{5}[/tex]

    = [tex]4\frac{9}{10}[/tex]

45. VIII = 8

I attached the question

Answers

Answer:

The answer for the first one is 6,9 and the second one is 5

Step-by-step explanation:

hope this helped !! :)

Answer:

i dont know

Step-by-step explanation:

Maybe try looking up 20/12 and then apply that to the other problems

Which is the solution to the equation − 3 ( 2 x + 5 ) 5 = − 3 ? A. 21 B. 0 C. no solution D. infinite solutions

Answers

Answer:

Infinite solutions or more

(-2x+7)
- (x+11)
Can u please help

Answers

Answer:

-3x-4

Step-by-step explanation:

-2x+7-(x+11)= -2x+7-x-11

now combine like terms:

-3x-4

(3x 2 + 5x - 8) and (x^2-3x + 2)

Answers

Answer:

(3x 2 + 5x - 8) = (3x+8)(x−1)

(x^2-3x + 2)= (x−1)(x−2)

Step-by-step explanation:

you just have to factor

Answer:

1) 11x-8

2)       x2-3x+2      

Step-by-step explanation:

if it is correct plz plz mark as brainliest

thank you

19NBoli

what type of communication coordinates actions within cells?​

Answers

Answer:

Step-by-step explanation:  Chemical signal is the type of communication which coordinates actions between neighboring cells . This ability originated in single cells organisms and was essential for the evolution of multicellular organisms because after a cell receives a message, it is transferred across the plasma membrane and changes are brought about within the cell in response to this message.

Ok I need help ASAP pls like right now points are going giving and mark brainless pls help I need answers for 1,2,3

Answers

Answer:

1. 30 student

2. 120 student's didn't vote

3. 7 quarters

Step-by-step explanation:

1. first, see how many games can be played:

45÷3 = 15

then, multiply the number of games by two because 2 students can play per game

15 • 2 = 30

2. first, figure out what percent of students did not vote:

  100 - 60 = 40%

  then, multiply the number of students total (300) by the decimal of the percent that did not vote to find the number of students who didn't vote:

    300 • .40 = 120 student's didn't vote

3. first, find how much 9 dimes is:

   1 dime = $0.10

   9 dimes = 9 • $0.10 = $0.90

  then, find how much money kerry had:

   $2.65 - $0.90 = $1.75

   finally, find out how many quarters kerry had by dividing the amount of money she had by the worth of a quarter:

   1 quarter = $0.25

    $1.75 ÷ $0.25 = 7 quarters    

5 x - 3 = 27 , x=___ help

Answers

5x-3=27 +3
5x=30 divide by 5
x= 6

Answer: x=6

Step-by-step explanation:

Given

5x-3=27

Add 3 on both sides

5x-3+3=27+3

5x=30

Divide 5 on both sides

5x/5=30/5

x=6

Hope this helps!! :)

Please let me know if you have any questions

You poured 4 kilograms of oats equally into 3 bags. What is the weight of each of his bags of oat
Please answer i’m confused lol i didn’t pay attention in math

Answers

Answer: 1 bag = 1 1/3kg

Detailed Explanation:
3 bags = 4kg.
3/3=1
4/3=4/3 (must do the same to other side)
Therefore, 1 bag = 4/3 or 1 1/3kg.

Answer:

2 2/3

Step-by-step explanation:

we know that the kg in each bag is 2 2/3

If rectangle LMNO were rotated 180° clockwise about the origin to create rectangle L'M'N'O', what would the measure of angle O' be?

Answers

9514 1404 393

Answer:

  90°

Step-by-step explanation:

Any corner angle in a rectangle is 90°. Rotating the figure does not change that. Angle O' = 90°.

_____

Additional comment

No rigid transformation (translation, rotation, reflection) changes any angles. Nor does uniform dilation (the kind we usually study). Hence any rectangle that is translated, rotated, reflected, or dilated will still have all angles measuring 90°.

the number - 12/16 can be reduced as​

Answers

Answer:

3/4

Step-by-step explanation:

12 divide 4 3

16 divide 4 4

Answer:

-3/4

Step-by-step explanation:

-12/16 ÷ 4 = -3/4

Can someone please help me, i need to get this done before tommorrow!

Answers

Answer:

Ryan swam further by 5/6

Step-by-step explanation:

34 2/3 = 104

52 5/8 = 104 5/6

104 5/6 - 104 = 5/6

Choose one card that does not belong. Explain why
that card does not belong. Be specific.

HELP PLEASE

Answers

The pink one doesn’t belong because it isn’t part of a solution like the other ones are

Answer:

I believe it would the the parallel on the top left

Step-by-step explanation:

I said the parallel because the other three are all angles (acute(<90),Right(90) and obtuse(90>)

Which graph shows a vertical translation of ƒ(x) up 5 units to give a new function g(x)?

Answers

I mist that one its not the first one

Step-by-step explanation:

Answer:

The correct answer is the last image...I just got it right on the quiz.

Step-by-step explanation:

Harder questions.


Will give, Branliest.​

Answers

Answer:

425p + 100

Step-by-step explanation:

only answer that makes sense

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