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AysviL [449]
4 years ago
8

A bus travels 36 miles in 45 minutes. Enter the number of miles the bus travels in 60 minutes at this rate.

Mathematics
2 answers:
Reptile [31]4 years ago
6 0
Set up the proportion line up minutes with minutes and miles with miles so it would be x over 60 36 over 45 and u get 48
german4 years ago
6 0
Set up a ratio
36/45=x/60

Cross multiply and solve for x
(36)(60)/45 = x
x = 48 miles

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mart [117]

Answer:

Step-by-step explanation:

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4 0
3 years ago
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scZoUnD [109]

Answer:

Step-by-step explanation:

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3 years ago
Evaluate-32 + (2 – 6)(10)<br> The answer is -49
Drupady [299]
Ok thank you I think you answered in the wrong place
8 0
4 years ago
Caleb and Landon work at a dry cleaners ironing shirts. Caleb can iron 30 shirts per hour, and Landon can iron 15 shirts per hou
AnnZ [28]

Answer: The system of equations are

30x + 15y = 330

x = y + 2

Step-by-step explanation:

Let x represent the number of hours that Caleb worked.

Let y represent the number of hours that Landon worked.

Caleb can iron 30 shirts per hour, and Landon can iron 15 shirts per hour. This means that the number of shirts that Caleb would iron in x hours is 30x and the number of shirts that Landon would iron in y hours is 15y. They ironed 330 shirts between them. This means that

30x + 15y = 330 - - -- - - - - - - - - - - -1

Caleb worked 2 more hours than Landon. This means that

x = y + 2 - - - -- - - - - - - -2

4 0
3 years ago
Read 2 more answers
Un automóvil lleva una velocidad variable a lo largo de un trayecto de errática de modo que no podemos usar la fórmula v=d/t ni
Mademuasel [1]

Answer:

Podemos determinar la velocidad del automóvil mediante diferencias sucesivas tanto en el dominio del tiempo como en el dominio de la posición:

Dominio del tiempo

v_{i+1} = v_{i} + a_{i}\cdot \Delta t

Dominio de la posición

v_{i+1} = \sqrt{v_{i}^{2}+2\cdot a_{i}\cdot \Delta s}

Step-by-step explanation:

En este caso, es necesario tener una función que represente a esta en función del tiempo o de la posición si nos basamos en las definiciones diferenciales de aceleración (a(t)), medida en metros por segundo al cuadrado, es:

a(t) = \frac{dv}{dt} (1)

a(s) = v(t)\cdot \frac{dv}{ds} (2)

Donde:

v(t) - Velocidad del automóvil, medida en metros por segundo.

\frac{dv}{dt} - Primera derivada de la velocidad con respecto al tiempo, medida en metros por segundo.

\frac{dv}{ds} - Primera derivada de la velocidad con respecto a la posición, medida en \frac{1}{s}.

A continuación, analizamos cada ecuación:

Eq. 1

Procedemos a despejar la diferencial de velocidad e integramos la expresión resultante:

v_{f}-v_{o} = \int {a(t)} \, dt (3)

v_{f} = v_{o}+\int {a(t)} \, dt

Podemos obtener aproximaciones sucesivas al discretizar la ecuación anterior, es decir:

v_{i+1} = v_{i} + a_{i}\cdot \Delta t (3b)

Eq. 2

Procedemos a despejar la velocidad e integramos la expresión resultante:

\int {v} \, dv = \int {a(t)} \, ds (4)

\frac{1}{2}\cdot v_{f}^{2}-\frac{1}{2}\cdot v_{o}^{2} = \int {a(s)} \, ds

\frac{1}{2}\cdot v_{f}^{2} = \frac{1}{2}\cdot v_{o}^{2}+\int {a(s)} \, ds

v_{f}= \sqrt{v_{o}^{2}+2 \int {a(s)} \, ds }

Podemos obtener aproximaciones sucesivas al discretizar la ecuación anterior, es decir:

v_{i+1} = \sqrt{v_{i}^{2}+2\cdot a_{i}\cdot \Delta s} (4b)

4 0
3 years ago
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