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
Llana [10]
2 years ago
8

The perimeter of a triangle is 56. The side lengths are x + 4, 3x + 7, and x + 9. What is the value of x?

Mathematics
1 answer:
Sidana [21]2 years ago
5 0
<h3><u>Answer:</u></h3>
  • x = 7.2
<h3><u>Step-by-step explanation:</u></h3>
  • Perimeter: Side 1 + Side 2 + Side 3
  • => x + 4 + 3x + 7 + x + 9 = 56
  • => 5x + 20 = 56
  • => 5x = 56 - 20
  • => 5x = 36
  • => x = 7.2
<h3><u>Conclusion:</u></h3>

Therefore, the value of x is 7.2.

Hoped this helped.

BrainiacUser1357

You might be interested in
Every radius of a circle is a chord
Ugo [173]
False

A chord touches the  circle at 2 points.
5 0
3 years ago
Millie borrowed $20 from her dad. Explain why this situation indicates a negative number for Millie even though $20 is a positiv
Nata [24]
Millie will have to pay the $20 back, and as she already has no money, she's now $20 in debt
7 0
3 years ago
Read 2 more answers
Given the pdf of f(x) =2x for 0&lt;x&lt;2 and zero elsewhere, find the cdf​
Reptile [31]
Hope it helps.........

5 0
3 years ago
WILL NAME BRAINLIST!!
Novosadov [1.4K]

Answer:

D

Step-by-step explanation:

The fourth graph makes sense, and follows Deepak's equation. To check if a graph follows an equation, all you have to do is substitute the values of x and y into the equation and see if they follow the equation.

3 0
3 years ago
Read 2 more answers
En un examen de admisión de 120 preguntas, cada respuesta correcta vale 2 puntos y por cada incorrecta se quita medio punto. Un
padilas [110]

Answer:

Respondió mal 64 preguntas.

Step-by-step explanation:

De acuerdo a la información proporcionada puedes plantear las siguientes ecuaciones:

x+y=120 (1)

2x-0,5y=80 (2)

x es el número de preguntas correctas

y es el numero de preguntas incorrectas

Primero debes despejar "x" en (1):

x=120-y (3)

Después, debes reemplazar (3) en (2):

2(120-y)-0,5y=80

240-2y-0,5y=80

240-80=2,5y

160=2,5y

y=160/2,5

y=64

Ahora puedes reemplazar el valor de "y" en (3) para encontrar el valor de "x":

x=120-y

x=120-64

x=56

De acuerdo a esto, la respuesta es que el postulante respondió mal 64 preguntas.

6 0
3 years ago
Other questions:
  • What is the difference between a representation of a concept and an example? PLEASE HELP!!
    10·1 answer
  • you buy a baseball and a bat and spend $31. the bat costs $19 more than the baseball. what is the price of the baseball? What is
    11·2 answers
  • A store is giving out cards labeled 1 through 10 when customers enter the store. If the card is an even​ number, you get a 10​%
    6·1 answer
  • How many different triangles can you make if you are given these two lengths for sides?
    13·2 answers
  • X + 4y = 0<br> 16y = -4x<br> What is the solution to the system?
    10·1 answer
  • For what values (cases) of the variables the expression does not exist: a/2x−4
    11·1 answer
  • Yolanda read her book for 1 1/5 hours monday evening and for 2 3/5 hours on tuesday evening what is the estimated time she read
    8·1 answer
  • 1. A circle with center (-5, 2) is tangent to the y-axis. What is the radius of the circle? What is the equation of the circle?
    10·1 answer
  • Cameron completed the following long division problem. Identify the error in his division.
    9·1 answer
  • Will give brainlest if correct, and 5 stars.<br><br> Solve for x
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!