siqijcueinf siqijcueinf

20-07-2017
Mathematics

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A hummingbird's heart beats 250 Times in 10 seconds. Use a proportion to find how many times it's heart beats in 32 seconds

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Aqua2021 Aqua2021

20-07-2017

250 times: 10secs

? times: 32 secs

Cross Method: 32*250=10*x

8000=10*x

x=800

Answer: 800 times

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TrippyTess TrippyTess

20-07-2017

It would be 800 times :) 250/10 = 25/1 25×32 = 800/32

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