Arikat145
Arikat145 Arikat145
  • 07-03-2017
  • Mathematics
contestada

While exercising Julie found that her heart was beating 12 times every five seconds how many times was it be eating per minute (60 seconds)

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Setor9
Setor9 Setor9
  • 07-03-2017
To find her heart rate per minute, set up a proportion.
Let x represent the number of heart beats in a minute.
12/5=x/60
5x=720
5/5x=720/5
X=144
Thus, her heart was beating at a rate of 144 beats per minute.
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