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10 February, 09:23

Donnas heart beats 60 times a mintue. At this rate, how many times does her heart beat in one and one half hours?

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Answers (2)
  1. 10 February, 09:44
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    So Donnas's heartbeat beats 60 times a minute in one and a half hour it would be 5,400
  2. 10 February, 09:53
    0
    one and one half hours = 90 minutes

    60 times a minute

    so

    90 x 60 = 5400

    answer

    Donnas heart beats 5400 times in one and one half hours
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