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netineya [11]
3 years ago
7

You are driving to visit a friend in another state who lives 440 miles away. You are driving 55 miles per hour and have already

driven 275 miles. Write and solve an equation to find how much longer in hours you must drive to reach your destination. 55h – 275 = 440; h = 13 55h + 275h = 440; 440h – 275 = 55; h = 0.75 55h + 275 = 440; h = 3
Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
7 0

440 miles - 275 miles = 165 miles

165 + 275 = 440


Sauron [17]3 years ago
3 0

Answer:

440h – 275 = 55; h = 0.75

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Jack’s bill at a restaurant came to $52.31. He wants to leave a 15% tip. How much will the new total be, including tip?
blondinia [14]
52.31*1.15=60.1565

round it to the nearest penny and you will get $60.16
4 0
4 years ago
Hola me ayudan con esta pregunta TRANSFORMAR LOS SIGUIENTES DECIMALES EN FRACCIÓN, 1.- 8,485 2.- 125,65 3.- 54,987987... 4.- 266
Nitella [24]

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

3 0
3 years ago
There are two aircraft carriers, A and B, and the carrier A is longer in length the carrier B. The total length of these two car
Svetradugi [14.3K]

Answer:

<h3>Length of carrier A = 2096 feet</h3><h3> Length of carrier B=2082 feet.</h3>

Step-by-step explanation:

Given , two air craft carriers are A and B . The carrier A is longer than the carrier B in length.

Total length of two carriers =4178 feet

Difference of two carriers = 14 feet

Let

Length of carrier A =x  feet

And

Legth of carrier B =y feet

According to question  

The I equation is

x+y=4178

The II equation is

x-y= 14

Substitution method:  In this method step I :  we  find value of x or y from the equation I

Step II:  put the value of x or y in II equation then we get the value of another  varaiable x or y  

Step : Again put the obatined value of variable x or y  from  step II   in equation I then we get value of other variable x or y .

By  using substitution method ,

we find value of x from equation I

x= 4178-y

Now, put the value of x in equation II then we get

4178-y-y=14

4178-2y=14

4178-14=2y

4164=2y

y=\frac{4164}{2}

y= 2082

Again , put the value of y in equation I

2082 +x=4178

x= 4178-2082

x=2096

Hence, the length of carrier A = 2096 feet

The length of carrier B= 2082 feet

4 0
3 years ago
Directions: Solve the following by multiplying by the inverse of the fractional coefficient. 1. \frac{2}{5} t = 20 2. \frac{7}{8
coldgirl [10]

The answer of the following options are as 50, 64, 36, 40, 100, 9, 12, 12 100, 27, 150 42, 50 72, 28.3.

<h3>How to interpret the fraction?</h3>

Suppose the fraction is proper (the numerator is smaller than the denominator).

Let it be

\dfrac{a}{b}

Then, we can interpret it as:

a parts out of b parts of a thing.

1. \dfrac{2}{5} t = 20\\\\t = 20 \times \dfrac{5}{2}\\\\t= 50

2. \frac{7}{8} p = 56\\\\p = 56 \times \frac{8}{7} \\\\ p= 64

3. \frac{5}{6} x = 30 \\\\x = 30 \times \frac{6}{5}  = 36

4. \frac{1}{2} x = 20\\\\x = 20 \times 2 = 40

5. \frac{3}{5} s = 60\\\\s = 60 \times \frac{5}{3} = 100

6. \frac{1}{3} t = 3 \\\\t = 3\times 3 = 9

7. \frac{3}{4} x = 9\\\\x = 12

8. \frac{11}{12} x = 11\\\\x = 11 \times 12/11 = 12

9. \frac{8}{10} t = 80\\\\t = 80 \times 10/8 = 100

10. \frac{p}{3} = 9 \\\\p = 9 \times 3 = 27

11. \frac{n}{5} = 30\\\\n = 30 \times 5 = 150

12. \frac{6a}{7} = 36 \\\\a = 36 \times 7/6 = 42

13. \frac{1}{2} t + 3 = 28\\\\t = (28 - 3)2 = 50

14. \frac{1}{6} r = 12\\\\r = 12\times 6 = 72

15. \frac{11}{12} b = 32\\ \\b = 32 \times 11/12 = 29.33

Learn more about fraction here:

brainly.com/question/27010538

#SPJ1

3 0
2 years ago
Each of the options below describes a relationship that you need to graph in a coordinate plane. which of the options will have
Whitepunk [10]
You correct answer would be a.
4 0
3 years ago
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