D is the midpoint of CE and EC = 18. Find the length of DE

Answers

Answer 1

Answer:9

Step-by-step explanation:


Related Questions

Which set of numbers best describes the possible values of x in the equation below?
[x-1] = [x]

a. all integer values of x
b. all real number values of x
c. only negative values of x
d. only non-integer values of x

Answers

C only negative values of x

The set of numbers best describes the possible values of x in the equation is option c. only negative values of x.

Calculation of the possible values of x;

Since the equation is

x - 1 = x

So, here the x should be canceled out

So, it should be like

0 = -1

Hence, we can say that

The option c is correct,

And, the rest of the options are incorrect.

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A party of 20 adults and 15 children celebrates at a restaurant. Each table in the restaurant seats 4 people. How many tables will the party use?

Answers

Answer:

9

Step-by-step explanation:

20 divided by 4=5 then 15 divided by 4=3.75 so technically 4 so 5+4=9

melonie is 3 times older than her cousin their total of there ages are 36 how old is melonies cousin

Answers

Answer:

Her cousin is 12

Step-by-step explanation:

Use division

Which is the correct chemical equation for photosynthesis?

Answers

Answer: The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Step-by-step explanation: This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

Carlos cut Start Fraction 5 Over 12 End Fraction of a yard of cloth into 5 pieces of equal length. What was the length of each piece of cloth?

Start Fraction 1 Over 60 End Fraction of a yard
Start Fraction 1 Over 25 End Fraction of a yard
Start Fraction 1 Over 12 End Fraction of a yard
One-fifth of a yard

Answers

Answer:

C.1/12

Step-by-step explanation:

Divide 5/12 by 5 since he cut it into 5 equal pieces

i need help please!!

Answers

It’s A. They’re eliminating the x term and they multiply by -2 to add 2x and -2x so it’s A

sara got 32 question out of 36. what was the percentage she got correct

Answers

Answer:

88.8%

Step-by-step explanation:

Answer:

89% correct

Step-by-step explanation:

32 out of 36

32/36

8/9

0.89

89 percent correct

I need help please!!!!

Answers

9. Divide -6 by 2 and then square it. -3^2=9

125ml= how many cenimeters?

Answers

Answer:

150

Step-by-step explanation:

multiply the volume by 1

Answer:

12,500 cm

Step-by-step explanation:

ml × 100 = cm125 × 100 = 12,500

I hope this helps!

What is -9 + m + (-6) in simplest form?

Answers

Answer:

m-15

Step-by-step explanation:

What is the scale factor to go from small triangle to the large triangle?

Answers

Divide both numbers in one of the ratios by their highest common factor. This will give you the scale factor of the bigger triangle to the smaller triangle.

I’m confused how to do ratios

Answers

Answer:

i will explain it to you

Step-by-step explanation:

Me too I don’t even know them it’s hard the answer probably is something

Solve by taking the square too of both sides.
3(c+3)^2-81=0

Answers

Answer:

x = -3 ±3sqrt(3)

Step-by-step explanation:

3(x+3)^2-81=0

Add 81 to each side

3(x+3)^2=81

Divide each side by 3

3/3(x+3)^2=81/3

(x+3)^2=27

Take the square root of each side

sqrt ((x+3)^2)=±sqrt(27)

x+3 =±sqrt(9*3)

x+3 =±sqrt(9)*sqrt(3)

x+3 =±3sqrt(3)

Subtract 3 from each side

x = -3 ±3sqrt(3)

Help out
It is due at 7:00​

Answers

Answer:

I want the free points. Sorry :)

1 9/13 divided by 3/8
|

Answers

If you're dividing 9/13 by 3/8, then you have

(9/13) / (3/8) = (9/13) • (8/3) = 72/39 = 24/13

If you're dividing 1 + 9/13 by 3/8, then first write 1 + 9/13 as an improper fraction:

1 + 9/13 = 13/13 + 9/13 = 22/13

Then

(1 + 9/13) / (3/8) = (22/13) / (3/8) = (22/13) • (8/3) = 176/39

At the supermarket you can fill your own honey bear container. A customer buys 12 oz of honey for $5.40. i need help.

Answers

Answer:

Ok, So what I would do first if I were you Is probably divide $5.40 by 12. So that would equal $0.45. So that mean it costs $0.45 per oz.

Step-by-step explanation:

How this helped!

What is the slope of the line represented by the equation 2x+3y= -12?
-3/2
-2/3
2/3
3/2

Answers

-2/3 is your answer since 2x+3y=-12
Then you add -2x on both sides making
3y=-12-2x
Then you divide the 3 to get the y by itself
So y=-12-2x/3
Which is y=-4-2/3x and the x is the slope so it’s -2/3

48t-18=57t-81 equal what? t=-38, t=63, t=-7, t=38, t=19, or t=7

Answers

HhshshhsnjgdbshvsjhevsnshvdhdANSWER IN PIC

Answer:

t =7

Step-by-step explanation:

48t-18=57t-81                         Subtract 48t from both sides

48t-48t - 18 =57t-48t - 81       Combine

-18 = 9t - 81                             Add 81 to both sides

-18+81 = 9t -81 + 81                 Combine

63 = 9t                                    Divide by 9

63/9  = 9t/9

7       = t

If Jim can read an average of 20 pages in 40 minutes, how many hours would it take him to read a manual containing 90 pages?

Answers

Answer:

it takes him 180 kinutes to read 90 pages

180 minutes I think

Help me easy math problem

Answers

Answer:

15/36

Step-by-step explanation:

Answer:

51/39 then simplify

Step-by-step explanation:

I did it

Find the coordinates of the midpoint of if A(–4, 7) and S(5, 3).

Answers

Answer:

The answer is

(1/2 , 5)

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

(x1 , y1) and (x2 , y2) are the points

From the question the points are

A(-4, 7) and S(5,3)

Simplify the expression and enter your answer below.
(191/99

Answers

Answer:

the correct answer is 1 92/99

Solve –8y + 3 > –5.

A. {y | y < –1}
A. {y | y < –1}

B. {y | y > 1}
B. {y | y > 1}

C. {y | y > –1}
C. {y | y > –1}

D. {y | y < 1}

Answers

A bc it’s less then

Answer:

.

Step-by-step explanation:

A store plans to sell two different game consoles, the YuuMi and the ZBox. The store’s wholesale cost for a YuuMi is $250, and the store can sell one for $295. The ZBox’s wholesale price is $400, and the store can sell it for $450. The store’s marketing research indicates that the total monthly demand for game consoles will not exceed 250 units sold. The store’s financial manager does not want to invest more than $70,000 in inventory costs for game consoles. How many of each game console should the store stock in order to maximize their profits, and what is their maximum monthly profit?
Constraints:

Objective formula:

Answers

9514 1404 393

Answer:

Constraints: x + y ≤ 250; 250x +400y ≤ 70000; x ≥ 0; y ≥ 0Objective formula: p = 45x +50y200 YuuMi and 50 ZBox should be stockedmaximum profit is $11,500

Step-by-step explanation:

Let x and y represent the numbers of YuuMi and ZBox consoles, respectively. The inventory cost must be at most 70,000, so that constraint is ...

  250x +400y ≤ 70000

The number sold will be at most 250 units, so that constraint is ...

  x + y ≤ 250

Additionally, we require x ≥ 0 and y ≥ 0.

__

A profit of 295-250 = 45 is made on each YuuMi, and a profit of 450-400 = 50 is made on each ZBox. So, if we want to maximize profit, our objective function is ...

  profit = 45x +50y

__

A graph is shown in the attachment. The vertex of the feasible region that maximizes profit is (x, y) = (200, 50).

200 YuuMi and 50 ZBox consoles should be stocked to maximize profit. The maximum monthly profit is $11,500.

PLEASEE HELP ME AS FAST AS POSSIBLE! According to the fundamental theorem of algebra, how many solutions does this polynomial have?

Btw sorry about the bad lighting

Answers

2, because there are 2 different factors with x in it.

x could be 0, or 4.

Hope this helps

The number of the solution of the polynomial is 2. And the solutions of the polynomial are 0 and 4.

What is polynomial?

A polynomial expression is an algebraic expression with variables and coefficients. Unknown variables are what they're termed. We can use addition, subtraction, and other mathematical operations. However, a variable is not divisible.

The polynomial is given below.

y = 3x(x - 4)

The factors of the polynomial are 3x and (x - 4).

For the solution of the polynomial, put each factor equals to zero.

Then the solution of the polynomial will be

3x = 0

 x = 0

x - 4 = 0

     x = 4

The number of the solution of the polynomial is 2.

And the solutions of the polynomial are 0 and 4.

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38.5 divided by 0.5 simplified

Answers

Answer:

77

Step-by-step explanation:

38.5 ÷ 0.5 = 77

77 x 0.5 = 38.5

(think of 5 x 7)

0.5 x 70 = 35 (3.5 left)

0.5 x 7 = 3.5 (0 left)

70 + 7 = 77

if side of the triangle in 8cm and side 2 is 5cm, then what is the possible range for the length of the third side of the triangle?​

Answers

Answer:

7cm

Step-by-step explanation:

In a group of five students who took the same test, four of the scores were 85, 92, 81, and 95. If the average of the five students was 89, what was the score of the fifth student?

Answers

Answer:

92

Step-by-step explanation:

89 x 5 = 445

85 + 92 + 81 + 95 = 353

445 - 353 = 92

The score of the fifth student is 92.

What is an average?

An average is a single number taken as representative of a list of numbers, usually the sum of the numbers divided by how many numbers are in the list.

Now it is given that,

Average of the five students = 89

Scores of four students = 85, 92, 81, and 95

Number of students = 5

Let the score of fifth student be x.

Average of the five students = scores of five students/Number of students

scores of five students =Scores of four students + score of fifth student

scores of five students = 85+92+81+95+x

scores of five students = 353+x

Average of the five students = (353+x)/5

⇒89 = (353+x)/5

or, 445 = 353+x

or, x = 445 - 353

⇒  x = 92

Hence, the score of the fifth student is 92

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Magic lines
Can you put the numbers 2 to 8 in the circles so that every line
adds up to 15? You can use each number only once.

Answers

Answer:

Please see attached image

Step-by-step explanation:

The numbers on the upper row should be:  7   6   2

the number in the central disk should be    5

the bottom row should read  : 8   4   3

The addition on top row: 7 + 6 + 2 = 15

the addition on bottom row:  8 + 4 + 3 = 15

the addition on the central vertical column: 6 + 5 + 4 = 15

diagonal going down:    7 + 5 + 3 = 15

diagonal going up:   8 + 5 + 2 = 15

John and Amelia have a baby daughter Sonia John is 23 kg heavier than Amelia who is four times as heavy as Sonia their combined weight is 122. how heavy is each person​

Answers

x+4x+4x+23

9x+23=122

122-23=99

9\99=11

J=67

A=44

S=11

11+44+67=122 kg

The weight of John, Amelia and Sonia are 67 kg, 44 kg and 11 kg respectively.

What is an Equation?

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Given that

Let j , a and s be the weights of John, Amelia and Sonia respectively.

John is 23 kg heavier than Amelia.

j = a + 23

Amelia is four times as heavy as Sonia.

a = 4s ⇒ s = a/4

Their combined weight is 122.

j + a + s = 122

Substituting the above expressions of j and s in terms of a in the equation j + a + s = 122, we get,

(a + 23) + a + (a/4) = 122

2a + a/4 + 23 = 122

9a/4 = 122 - 23

2.25a = 99

a = 44

j = 44 + 23 = 67

s = 44/4 = 11

Hence the weight of each person is 67 kg, 44 kg and 11 kg.

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