6th grade ratio?

In 10 minutes a heart can beat 700 times.at this rate how many minutes will a heart beat 140 times? At what rate can a heart beat?
Asked Sep 04, 2014
it would be 10 over 700 is equal to ? over 140. You would cross multiply 140 times 10 to get 1400. Then you would divide 1400 by 700 to get 2. So it will take the heart 2 min to pump 140 times.
Answered Dec 18, 2014

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