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
grandymaker [24]
3 years ago
6

Hola me ayudan con esta pregunta TRANSFORMAR LOS SIGUIENTES DECIMALES EN FRACCIÓN, 1.- 8,485 2.- 125,65 3.- 54,987987... 4.- 266

,8484... 5.- 4,7899999... 6.- 924,741111... gracias
Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

Ve la respuesta abajo

Step-by-step explanation:

Para hacer la conversión de decimales a fracción, es necesario hacer dos cosas:

1. Identificar el tipo de decimal (finitos, infinito periódico, infinito semi periódico).

2. Aplicar la expresión o formula correspondiente, dependiendo del tipo de decimal.

Un decimal finito es aquel que solo tiene un número determinado de decimales y no se extiende al infinito.

Un decimal infinito periódico, es aquel cuya cifra decimal se repite constantemente hasta el infinito, esto puede ser un decimal, dos, etc.

Un decimal semi infinito periódico es aquel donde una parte de los decimales se mantiene sin repetir, y la otra parte se repite hasta el infinito.

Una vez que hayas identificado el tipo de decimal, solo debes aplicar alguna de los 3 casos siguientes:

1. PAra un decimal finito se convierte la cifra decimal en un numero entero multiplicando por 10, 100, 1000 depende del número de decimales que tenga, y se divide entre 10, 100, 1000.... segun el número de decimales y se simplifica la fracción si es posible.

2. Para un infinito periódico se anota el número y se le resta él o los números que están antes del período. Se coloca como denominador un 9 por cada número que está en el período (si hay un número bajo la rayita se coloca un 9, si hay dos números bajo el período se coloca 99, etc.). Si se puede simplificar, se simplifica.

3. El numerador de la fracción se obtiene, restando al número la parte entera y el anteperíodo, o sea, todo lo que está antes de la “rayita”.  El denominador de la fracción se obtiene colocando tantos 9 como cifras tenga el período y tantos 0 como cifras tenga el anteperíodo. Como siempre, el resultado se expresa como fracción irreductible (no se puede simplificar más) o como número mixto.

Dicho esta parte teórica, pasemos a la práctica y convirtamos los decimales a fracción:

1. 8,485: decimal finito, con 3 decimales, lo anotamos sin la coma, y entonces colocas como denominador el 1000, porque fueron 3 decimales, 3 ceros ----------> 8485/1000 = 1697/200   (se simplificó por 5)

2.  125,65: decimal finito -----> 12565/100 = 2513/20

3. 54,987987: infinito periódico, aplicamos los pasos de arriba:

54,987987 = 54987 - 54 / 999 = 54933 / 999

4. 266.8484..: infinito periódico

266,8484.... = 26684 - 266 / 99 = 26418 / 99

5. 4,78999.: Infinito semiperiódico

4,78999 = 4789 - 478 / 900 = 4311 / 900

6. 942,74111: infinito semiperiódico

942,74111 = 942741 - 94274 / 900 = 848467 / 900

Espero te sirva

You might be interested in
Helpppppp pleaseeee number 8,9 and the last one
garik1379 [7]
8 is:
a)2x+3
b)7x^2
c)3x^2+2x+1
d)x^2+2x+7
e)x^2+2x+3
f)7x^2+2x+1
g)3x
h)x^2+3x
9 is:
a)5x
b)4x+9
c)4x+2
d)4x-2
3 0
3 years ago
Read 2 more answers
National Textile installed a new textile machine in one of its factories at a cost of $250,000. The machine is depreciated linea
kirill115 [55]

Answer:

The required expression is y=250,000-24,000 t

Step-by-step explanation:

Consider the provided information.

National Textile installed a new textile machine in one of its factories at a cost of $250,000.

That means for 0 year the cost of the machine is $250,000.

This can be written as: (0, 250,000)

Over 10 years with a scrap value of $10,000

That means for 10 year the cost of the machine is $10,000.

This can be written as: (10, 10,000)

Now first find the rate of change:

Rate of change=m=\frac{Rise}{Run}=\frac{10,000-250,000}{10-0}

Rate of change=m=\frac{Rise}{Run}=\frac{-240,000}{10}

Rate of change=m=\frac{Rise}{Run}=-24,000

Now use the point-slope form of an equation of a line with the point (0, 250,000), we can find the required expression.

(y-250,000)=-24,000(t-0)

y-250,000=-24,000 t

y=250,000-24,000 t

Hence, the required expression is y=250,000-24,000 t

6 0
3 years ago
Charlie needs to drive to Dallas which is 240 miles. If he drives 60 miles
Eduardwww [97]

Answer:

4

Step-by-step explanation:

Since the question is asking how long will it take him if he has to drive 240 miles and he drives 60 mph, this can be interpreted as division.

Now that we have converted the words into math, we are really solving 240 ÷ 60 or \frac{240}{60}.

240 divided by 60 is the same as 24 divided by 6 because we can cancel the 0's.

Solving:

24 ÷ 6 = 4.

Thus, our answer is that it will take Charlie 4 hours to get to Dallas.

7 0
3 years ago
Rory walks a combined 7/8 of a mile to school and back each day. How many miles does he walk each way?
vlabodo [156]
He walks to and back from school. 7/8 x 2
14/8 or 1 6/8 or 1 3/4 miles in all. 
8 0
3 years ago
Find the 70th term of the arithmetic sequence 29, 17, 5
ANTONII [103]

Answer:

857

Step-by-step explanation:

70th term = a + d(n-1)

d= 29-17=12

a=29

n-1 = 69

70th term = 29 + 12×69

= 29 + 828

= 857

7 0
3 years ago
Other questions:
  • The difference of 23 and p
    13·2 answers
  • What is the answer to 5-2x=12
    12·1 answer
  • Solve the Equation: √3x-12=0
    9·2 answers
  • Fint the center circle with these coordnates (10,3)(3,10)and(-4,3
    6·1 answer
  • The hartford insurance company has hired you to poll a sample of adults about their car purchases. what is wrong with using tele
    14·1 answer
  • The lengths of the sides of a triangle are in the extended ratio 7​ : 9 ​: 10. The perimeter of the triangle is 52 cm. What are
    9·1 answer
  • Find 2 numbers whose sum is 36 and diffrence is 10​
    15·2 answers
  • Members of a basketball team are reviewing their scores from the last several games. They record their point totals in the stem-
    13·1 answer
  • PLZ ANSWER ASAP I GIVE BRAINLIEST
    8·1 answer
  • Jacob is planting shrubs for a landscaping client. He planted more shrubs in the additional region so that the density of shrubs
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!