jordanshadow22 jordanshadow22
  • 13-02-2018
  • Mathematics
contestada

It took Jaytree 42 seconds to rip about half a DVD. About what is Jaytree’s “ripping rate” in DVDs per minute?

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carlosego
carlosego carlosego
  • 22-02-2018
You can solve this problem by using the following rule of three:
 42 s ----> 0.5 DVD
 x ----> 1 DVD
 Clearing x:
 x = (1 / 0.5) * (42)
 x = 84 s (time to complete a DVD)
 Then, we have the following conversion:
 1min = 60s
 So:
 x = (84/60)
 x = 1.4 min
 The rate is then:
 rate = 1 / 1.4 = 0.71 DVD / minute
 Answer:
 Jaytree's "ripping rate" in DVDs per minute is
 0.71 DVD / minute
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