prodsmit2949 prodsmit2949
  • 25-03-2024
  • Mathematics
contestada

Beth and Amy are trading marbles. Beth has three times more marbles than her sister, Amy.

The equation given below shows this relationship, where x represents the number of marbles Beth has, and y represents the number of marbles Amy has.



If Beth has 21 marbles, how many marbles does Amy have?

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