A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?
2 answers:
Answer: 4000 beats per hour
Step-by-step explanation:
<u>200 beats </u> X <u> 60 minutes </u>
3 minutes 1 hour
The term 'minutes' cancel out therefore you are left with beats per hour
<u>200 x 60 </u> = <u>12000 </u> = 4000 beats per hour
3 3
200 times / 3 minutes = x times / 60 minutes
3x = 12000
x = 4000 times in an hour
A person's heart will beat 4000 times in an hour.
Hope this helps!! :)
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