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kogti
4 days ago
7

Terrence walks at a pace of 2 mi/h to the theater and watches a movie for 2 hours and 15 min he rides a bus back home at 40 mi/h

the entire trip takes 3.5 hours how far is his house from the theater
Mathematics
1 answer:
zzz [4K]4 days ago
4 0

Solution:

Let x be the distance in miles from the house to the theater.

Total time taken for the trip =3.5-2.25=1.25 Hr

Then average speed =\frac{Distance}{Time}= \frac{2x}{1.25}\\

Terrence walks at a speed of 2 miles per hour to the theater and returns home at 40 miles per hour.

Thus, Average Speed =\frac{2+40}{2}= 21\\ mi/hr

Both average speeds must be equivalent. Hence, we can express this as:

\frac{2x}{1.25}=21\\
\\
2x=1.25*21\\
\\
x=13.125\\

Consequently, the distance from home is 13.125 miles.

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Un globo vuela entre dos ciudades A y B, que distan entre sí 1.500 m. Los tripulantes del globo ven la ciudad A con un ángulo de
Inessa [3907]

Respuesta:

La altitud del globo por encima del nivel del suelo es de 449,6 metros.

Explicación paso a paso:

El enunciado no está completo. El texto completo es: "Un globo se desplaza entre las ciudades A y B, que se encuentran a 1.500 m de distancia. Los ocupantes del globo observan la ciudad A con un ángulo de depresión de 27°, mientras que, para la ciudad B, el ángulo es de 36°. ¿Cuál es la altura aproximada del globo con respecto al suelo?"

El diagrama que ilustra esta situación está en el archivo adjunto. Para calcular la altura del globo, se pueden emplear las funciones trigonométricas, siendo recomendable hacer uso de la función tangente para los ángulos de depresión mencionados:

Ciudad A

\tan 27^{\circ} = \frac{h}{1500\,m-x}

0,510 = \frac{h}{1500\,m-x}

Ciudad B

\tan 36^{\circ} = \frac{h}{x}

0,727 = \frac{h}{x}

Donde h y x representan la altura desde el suelo y la distancia horizontal desde la ciudad A.

Luego, se igualan las alturas en ambas ecuaciones para calcular la distancia horizontal del globo en relación a la ciudad A:

0,727\cdot x = 0,510\cdot (1500\,m-x)

1,237\cdot x = 765\,m

x = 618,432\,m

Por último, la altura del globo sobre el suelo se calcula como:

h = 0,727\cdot x

h = 0,727\cdot (618,432\,m)

h = 449,600\,m

La altura del globo respecto al nivel del suelo es 449,6 metros.

6 0
11 days ago
A salesperson has to drive 500 miles. For the first three hours she drove at 65 mi/h. For the next two hours she drove at 55 mil
AnnZ [3877]
       Short answer: 195
First, you multiply 65 by 3, yielding 195 miles.
Then, multiplying 55 by 2 gives you 110 miles.

By summing both distances, you arrive at 305.
From 500, if you subtract 305, you find =195.
4 0
1 day ago
What is the density of the solid object that is weighed and submerged in water? The object's weight is 8.24g and is placed in a
Zina [3914]

Density (D) is calculated as mass (m) divided by volume (v).
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The volume change is determined by measuring the water level before and after the object is introduced to the beaker,
                                   v = 23.1 mL - 18.5 mL = 4.6 mL
Substituting into the density formula,
                                   D = 8.24 g / 4.6 mL = 1.79 g/mL
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7 0
12 days ago
Which of the following describes a continuous variable?
AnnZ [3877]

Answer: E. The sizes of shoes available for sale in a department store

Step-by-step explanation:

A continuous variable is characterized by:

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In this scenario, options A through D represent discrete variables that can be counted.

Only option E describes the measurement pertaining to shoe sizes.

Thus, "The sizes of shoes available for sale in a department store" defines a continuous variable.

Therefore, the correct choice is "E".

6 0
8 days ago
Which input value produces the same output value for the two functions on the graph?
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This question is essentially asking for the x-coordinate where the two graphed functions intersect. The intersection point corresponds to the input value for which both functions yield the same output. Among the options given, the correct choice is the second one, with x = -2 being the input value that results in identical outputs for both functions. I hope this clarifies your question.
4 0
17 days ago
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