A un muchacho le toma 90 minutos podar el jardín de su casa, pero su hermana puede hacerlo en 60 minutos ¿Cuánto tiempo les tomará podar el jardín si trabajan juntos, usando dos cortadoras?

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

y -5 = (-1/4)(x + 8)

step-by-step explanation:

answer: what is the conflict?

step-by-step explanation:

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* what lesson do they learn at the end of the story?