1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
____ [38]
3 years ago
12

Helpp

Mathematics
1 answer:
Ugo [173]3 years ago
3 0

The missing statement and reasons are;

<u><em>Statement 5; 12x + 20 = 11x + 23 </em></u>

<u><em> Reason 2; Vertically opposite angles are equal </em></u>

<u><em> Reason 4; Transitive property of equality. </em></u>

<u><em> Reason 6; Subtraction Property of Equality.</em></u>

We are given that;

∠BDA ≅ ∠A

We want to prove that; x = 3

Statement 1; ∠BDA ≅ ∠A

Reason; It is Given

Statement 2; ∠BDA ≅ ∠CDE; The statement means they are congruent and equal.

Reason; Vertically opposite angles are equal

Statement 3; ∠CDE  ≅ ∠A; This means ∠CDA is congruent to ∠A.

Reason; Transitive property of congruence.

Statement 4; m∠CDE = m∠A. We saw that ∠BDA ≅ ∠A and ∠BDA ≅ ∠CDE. Thus, by transitive property of equality, we can say that; m∠CDE = m∠A.

Reason; Transitive property of equality.

Statement 5; 12x + 20 = 11x + 23

Reason is; Substitution property of equality

Statement 6; 12x = 11x + 3; In statement 5 above, what was done to get this statement 6 was to subtract 20 from both sides. This is known as subtraction property of equality.

Reason; Subtraction Property of Equality.

Read more at; brainly.com/question/25043995

You might be interested in
What is the value of y?
777dan777 [17]

Answer:

i need a quetion to be able to answer

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Mrs Tan bought 4 times as many pens as notebooks and each notebook cost $8.20 more than each pen. She spent $26 more on the book
lilavasa [31]
Let x be the cost of 1 pen
then cost of 1 notebook = x + 8.20

Let y be the number of pens Tan buys
then number of notebooks Tan buys = y/4

She spent $26 more on books than on pens which means

Cost of notebooks - Cost of pens = 26
(x + 8.20) * y/4 - xy = 26

Sinplifying it

(xy + 8.20y)/4 - xy = 26
(xy + 8.20y - 4xy)/4 = 26
8.20y - 3xy = 104

She spent $394 which means

Cost of notebooks + Cost of pens = 394
(x + 8.20) * y/4 + xy = 394

Simplifying it

(xy + 8.20y)/4 + xy = 394
(xy + 8.20y + 4xy)/4 = 394
8.20y + 5xy = 1576

Now, we have two equations,

(1) 8.20y - 3xy = 104
(2) 8.20y + 5xy = 1576

Now we need to find a third equation with either x or y as the subject of any of both the previous equations.

Let's make y the subject of (2) equation

8.20y + 5xy = 1576
y(8.20 + 5X) = 1576
(3) y = 1576/(8.20 + 5x)

Let's substitute the new value of y from (3) into (1) because we rearranged (2) to from (3)

8.20y - 3xy = 104
y(8.20 - 3x) = 104
y = 104/(8.20 - 3x)
1576/(8.20 + 5x) = 104/(8.20 - 3x)
1576 * (8.20 - 3x) = 104 * (8.20 + 5x)
12923.2 - 4728x = 852.8 + 520x
12923.2 - 852.8 = 4728x + 520x
12070.4 = 5248x
12070.4/5248 = x
x = 2.3

Now find the value of y by substituting the value of x in either equation, preferably (3)

y = 1576/(8.20 + 5x)
y = 1576/(8.20 + 5 * (2.3))
y = 80

Therefore cost of 1 notebook = x + 8.20 = 2.3 + 8.20 = $10.50

8 0
3 years ago
a group sold 150 flowers and trees. they sold the flowers for $3.00 each and the trees for $2.00 each.​
Gwar [14]

Answer: incomplete question

Complete question:A group sold 150 flowers and trees. They sold the flowers for $3.00 each and the trees for $2.00 each. They made $300.00 from this sale.

Which equation will help to determine the number of flowers and the number of trees sold?

A. 2F + 3T = 150

B. F + T = 300

C. 3F + 2T = 300

D. F + T = 150 + 300

Answer: C. 3F + 2T = 300

Step-by-step explanation:

Let F stand for flower and T for trees

Flowers sold for $3 and trees sold for $2

Therefore, F + T = 150. . .1

3F + 2T = $300. . .2

Equation 2 would help determine the cost of selling tree.

3F+2T=$300

4 0
4 years ago
9. What is the value<br> of the expression?<br> 21.3 + (-34.87)
azamat

Answer:

-13.57

Step-by-step explanation:

21.3 + (-34.87) = -13.57

Mark me as brainliest if you want to.

4 0
3 years ago
SOS SOMONE HELP ME WITH THIS PLEASEEE
solmaris [256]

Answer:

x=3

y=–4

Step-by-step explanation:

kl=JM

3x+y=5

Jk=LM

3x-4y=25

3x+y=5

3x-4y=25

-5y=20

y=-20/5

y=-4

3x+y=5

3x+(-4)=5

3x=5+4

3x=9

x=3

3 0
3 years ago
Read 2 more answers
Other questions:
  • Two students compared the scores on their math tests. Their results on 9 tests are shown in the box plots below. Compare the box
    8·2 answers
  • What is the value of 5/6÷3/7? a) 15/42, b) 18/35, c) 35/18, d) 42/15
    7·2 answers
  • Multiply and simplify  3xy^4z^2 • 5x^2yx
    13·1 answer
  • Which of these rectangular prisms has a base area of 40cm2 and a volume of 160cm3?
    10·2 answers
  • Solve x and y x/5+y/6=12
    6·1 answer
  • A normal distribution has a mean of µ = 40 with σ = 10. If a vertical line is drawn through the distribution at X = 55, what pro
    12·1 answer
  • 19.119/10 solve the problem with correct significant number
    11·1 answer
  • Sesame Company purchased a computer system for $74,000 on January 1, 2018. It was depreciated based on a 7-year life and an $18,
    6·1 answer
  • ONLY HONEST PEOPLE!!! hey im aware that i have so muh dark circles under my eyes but please be completely honest and tell me if
    7·2 answers
  • Suppose the length and width of the box double. Does the surface area S double? Complete the explanation.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!