combat92803
combat92803 combat92803
  • 11-04-2017
  • Mathematics
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A box contains 10 book covers: 5 red, 2 blue, and 3 yellow. If a student randomly selects one book cover, what is the probability that the book cover he chooses will be red or blue?

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Blurryface25
Blurryface25 Blurryface25
  • 11-04-2017
the probability is 5+2/10= 7/10
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