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abruzzese [7]
3 years ago
9

When a grizzly bear hibernates, its heart rate drops to 12 heartbeats per minute which is 20% of its normal value. What is the g

rizzly bear’s normal heartbeat when not hibernating? * 40 heartbeats per minute 56 heartbeats per minute 60 heartbeats per minute 48 heartbeats per minute
Mathematics
2 answers:
Serhud [2]3 years ago
7 0

Answer:

60 beats per minute

Step-by-step explanation:

12 Heartbeats per minute during hibernation is 20 percent of the normal value.

Let X be the normal heartbeat,

So, as per the question

20% of X = 12

20/100 * X = 12

Hence X = 60

So, the normal heartbeat of the beer is 60 beats per minute.

vichka [17]3 years ago
5 0

Answer:

60 heartbeats per minute

Step-by-step explanation:

Let the normal heartbeats of the bear is x heartbeats per minute.

Given that the dropped heart rate is 12 heartbeats which is 20 \% of the normal heartbeat. This can ve written in the form of the equation as

12= 20\% of x

\Rightarrow 12=\frac {20}{100}\times x

\Rightarrow x= \frac {12\times 100}{20}

\Rightarrow x=60.

Hence, the normal heartbeats of the bear is 60 heartbeats per minute

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