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
Naddik [55]
3 years ago
11

If tb=5x and tu=4x-1 and ub=2x-1 what does x equal

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
3 0
If C is a point between AB then we can write AC + CB = AB

Same way we can write tu + ub = tb
tu = 4x - 1 , ub = 2x - 1 and tb = 5x
So we can write it as

4x - 1+ 2x - 1 = 5x

6x - 2 = 5x

6x - 5x = 2

x = 2

So x is  = 2.
You might be interested in
RESOLVER LOS SIGUIENTES SISTEMAS DE ECUACIONES APLICANDO EL METODO DE SUSTITUCION
kiruha [24]

Answer:

x = 1/2; y = 1/3

Step-by-step explanation:

2x + 3y = 2     Eq. 1

-6x + 12y = 1     Eq. 2

Eq. 1

2x + 3y = 2

2x = -3y + 2

x = -3/2 y + 1

Eq. 2

-6x + 12y = 1

De Eq. 1 sabemos que x = -3/2 y + 1

-6x + 12y = 1

-6(-3/2 y + 1) + 12y = 1

9y - 6 + 12y = 1

21y - 6 = 1

21y = 7

y = 7/21

y = 1/3

Eq. 1

2x + 3y = 2

2x + 3(1/3) = 2

2x + 1 = 2

2x = 1

x = 1/2

Respuesta: x = 1/2; y = 1/3

3 0
3 years ago
This is a proportion. What is the value of X?
Verizon [17]

Answer:

x = 15 or x = - \frac{2}{5}

Step-by-step explanation:

Cross- multiplying gives

(14x + 6)(17x + 5) = 9x(27x + 11) ( expanding factors )

238x² + 172x + 30 = 243x² + 99x

rearrange into standard form : ax² + bx + c = 0

5x² - 73x - 30 = 0 ← in standard form

consider the factors of the product 5 × - 30 = - 150 which sum to the coefficient of the x-term (- 73 )

the factors are - 75 and + 2

Use these factors to split the middle term

5x² - 75x + 2x - 30 = 0 ( factor by grouping )

5x(x - 15) + 2(x - 15) = 0 ← take out the factor (x - 15)

(x - 15)(5x + 2) = 0

equate each factor to zero and solve for x

x - 15 = 0 ⇒ x = 15

5x + 2 = 0 ⇒ x = - \frac{2}{5}


7 0
3 years ago
How do you earn $120 from his job yesterday. Today he expects to earn 15% less than yesterday and tomorrow he expects to earn 15
Ilya [14]
They took tax from his work
5 0
3 years ago
The ratio of Dobermans to terriers is 2:7. There are 774 dogs altogether.
kaheart [24]

Answer:

172-602 I think

Step-by-step explanation:

6 0
2 years ago
A swimming pool has a perimeter of 80 feet the short side measures 16 feet what is the length of the longer sides of the pool
svlad2 [7]

2 x (L + W) = Perimeter

2(L + 16) = 80   Then divide both sides by 2

L + 16 = 40         Then subtract 16 from both sides

L = 24 feet

8 0
3 years ago
Other questions:
  • What is the value of 4 in the number 745
    15·2 answers
  • How far is the Moon from the Sun x 500
    9·1 answer
  • What is 24/42 in the simplest form?
    7·2 answers
  • What is 76 times 468
    7·2 answers
  • What is the value of y? 79° 37° ?<br> Im talking about a triangle
    8·1 answer
  • What is 3.1 divided by 25.42
    9·2 answers
  • Sierra borrows $310 from her brother to buy a lawnmower. She will repay $85 to
    14·1 answer
  • What is the answer to the question?​
    10·2 answers
  • What is the domain of the function a^x
    11·2 answers
  • Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!