jamesvardyboy
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Stossel is listening to an audiobook that at normal speed will last 10 hours. Stossel decides listen the audiobook at 2.5 faster. How long will the book be?

Respuesta :

mhanifa

Answer:

  • 4 hours

Step-by-step explanation:

Speed and time are inverse functions.

At normal speed the time is 10 hours.

If the speed is 2.5 times faster, then time is 2.5 times less:

  • 10 hours / 2.5 = 4 hours

Speed is 2.5

Distance is 10

Time

  • 10/2.5
  • 10/(25/10)
  • 100/25
  • 4hrs

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