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
Helga [31]
3 years ago
9

Ana escribe conjuntos de cinco enteros positivos consecutivos con la siguiente propiedad: La suma de tres de los números es tan

grande como la suma de los otros dos. ¿Cuántos conjuntos con esta propiedad ha escrito Ana?
Seleccione una:

a. 1

b. 2

c. 0

d. 3

e. Mas de 3
Mathematics
1 answer:
Keith_Richards [23]3 years ago
5 0

Answer:

a) 1.

Step-by-step explanation:

Supongamos que el primer número entero positivo es a tal que a ∈ Z⁺.

Luego, el conjunto de los cinco enteros positivos se puede expresar como

A = {a; a+1; a+2; a+3; a+4}

Dada la condición del problema, se debe cumplir que

a + (a+1) + (a+2) = (a+3) + (a+4)

⇒  3a + 3 = 2a + 7

Resolviendo la ecuación resulta

a = 4

Luego, el conjunto A nos resulta

A = {4; 5; 6; 7; 8}

Puede concluirse que sólo un conjunto cumple con esta condición.

You might be interested in
Anyone can help asap?
Varvara68 [4.7K]

Company A: 120 + 0.50x

Company B: 60 + 0.60x

Company A = Company B (solve for x)

(Here, x = miles)


120 + 0.50x = 60 + 0.60x

120 - 60 = 0.60x - 0.50x

60 = 0.10x

600 = x

7 0
3 years ago
If y=2x+10 and X= -2 then what is y
lara [203]
Y=2•(-2)+10
Y=-4+10
Y=6
8 0
3 years ago
Read 2 more answers
I need help ! What's 2+2-8^2+208
Nata [24]

Answer:

148

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the ratio of two soccer balls to six footballs
kkurt [141]
The ratio would be 2:6 or 1:3 in its simplest form. 
3 0
3 years ago
The lines shown below are parallel.if the green line has a slope of -1/2, what is the slope of the red line?
Delvig [45]

The anwser is D

because it is very easy


4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the domain from the ordered pair {(1, 1), (2, 4), (3, 9), (4, 16)}
    6·1 answer
  • During the breaststroke competitions of a recent olympics,Nelson diebel swam 100 meters in 62 seconds,and Mike bower man swam 20
    5·1 answer
  • Need help!! plzz help asap​
    11·1 answer
  • Does anyone know this answer I don’t get it
    9·1 answer
  • If f(x) = x^2 + 3x – 2. find f(-2) .<br>f(-2) = -4<br>f(-2) = 4<br>f(-2) = -2<br>f(-2) = 2​
    5·1 answer
  • CAN SOMEONE PLEASE HELP ME I HAVE POINTS AND BRAIBLEST !!
    9·1 answer
  • Please help. The topic is angles. Anything you know helps
    11·1 answer
  • Find the distance between A(-1, -1) and B(4, -5). Round your answer to the nearest tenth.
    5·1 answer
  • How many one-tenths are in two-fifths?
    10·2 answers
  • The distance around a triangle is 46 ft the length 12 what is the width
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!