china19 china19

05-10-2016
Mathematics

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if the heart of an elephant , at rest beat an average of 1680 beats in 60 min . What is the rate in beats per minute

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jhonyy9 jhonyy9

05-10-2016

use the rule of 3 simple

1680 beats ------- 60 min.
x beats -------------- 1 min.
----------------------------------
x = (1680*1)/60 = 1680/60 = 168/6 = 28 beats per minute

hope helped

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