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When a grizzly bear hibernates, its heart rate drops to 10 beats per minute, which is
20% of its normal value.
What is a grizzly bear's normal heart rate when not hibernating?
beats per minute

When a grizzly bear hibernates, its heart rate drops to $10$ beats per minute, which is $20 \%$ of its normal value. $\newline$ What is a grizzly bear's normal heart rate when not hibernating? $\newline$ beats per minute

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Percent of change: find the original amount word problems

Full solution

Q. When a grizzly bear hibernates, its heart rate drops to

10

beats per minute, which is

20 \%

of its normal value.

\newline

What is a grizzly bear's normal heart rate when not hibernating?

\newline

beats per minute

Identify Given Information: Identify the given information and what is being asked. $\newline$ The grizzly bear's heart rate during hibernation is $10$ beats per minute, which is $20\%$ of its normal heart rate. $\newline$ We need to find the normal heart rate.
Understand Relationship: Understand the relationship between the hibernating heart rate and the normal heart rate. $\newline$ $20\%$ of the normal heart rate is equal to the hibernating heart rate of $10$ beats per minute. $\newline$ Let $n$ be the normal heart rate. $\newline$ Then, $0.20 \times n = 10$ .
Solve for Normal Rate: Solve for $n$ , the normal heart rate. $0.20 \times n = 10$ Divide both sides of the equation by $0.20$ to isolate $n$ . $n = \frac{10}{0.20}$
Calculate Normal Rate: Calculate the normal heart rate. $\newline$ $n = \frac{10}{0.20}$ $\newline$ $n = 50$ $\newline$ The normal heart rate of the grizzly bear when not hibernating is $50$ beats per minute.

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