Donovan2682 Donovan2682
  • 22-06-2019
  • Mathematics
contestada

A bag contains purple marbles and blue marbles ,27 in total . The number of purple marbles is 3 less than 4 times the number of blue marbles . How many purple marbles are there

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konrad509
konrad509 konrad509
  • 22-06-2019

[tex]p+b=27\\p=4b-3\\\\4b-3+b=27\\5b=30\\b=6\\\\p+6=27\\p=21[/tex]

21

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