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It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on herdrive to school

Question

It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on herdrive to school

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Solution

Para calcular la velocidad promedio de Serina en su trayecto a la escuela, utilizamos la fórmula de la velocidad promedio, que es:

Velocidad promedio=DistanciaTiempo \text{Velocidad promedio} = \frac{\text{Distancia}}{\text{Tiempo}}

Dado que la distancia es 16 km y el tiempo es 0.25 horas, sustituimos estos valores en la fórmula:

Velocidad promedio=16 km0.25 horas \text{Velocidad promedio} = \frac{16 \text{ km}}{0.25 \text{ horas}}

Realizamos la división:

Velocidad promedio=160.25 \text{Velocidad promedio} = \frac{16}{0.25}

Para simplificar la división, podemos multiplicar tanto el numerador como el denominador por 4:

Velocidad promedio=16×40.25×4=641=64 km/h \text{Velocidad promedio} = \frac{16 \times 4}{0.25 \times 4} = \frac{64}{1} = 64 \text{ km/h}

Por lo tanto, la velocidad promedio de Serina en su trayecto a la escuela es de 64 km/h.

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