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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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Ludmilka [50]

Answer:

the \: area \: of \: the \: logo \: is \:  {91cm}^{2}

Step-by-step explanation:

To determine the area of the logo you have to calculate the area of the triangle and the square that comform it and then add the four areas.

Area of the square.

To calculate the area of the square you have to calculate the square of one of its sides, following the formula:

a =  {a}^{2}

Where "a" is the length of one of its side.

The side length of the square is a=7cm, so its area will be:

asquare =  {7}^{2}  \\ asquare =  {49cm}^{2}

Area of the triangles.

The three triangles are equal, they have a base equal to the side of the square, i.e. with a length of 7cm, and their height is h=4cm.

To calculate the area of one triangle, you have to multiply its base by its height and divide by 2, following the formula:

a =  \frac{b.h}{2}  \\  a =  \frac{7.4}{2}  \\ a =  \frac{28}{2}  \\ a =  {14cm}^{2}

The area calculated the correspond to one triangle, since all triangles are congruent, you have to multiply the said area by 3 to determine the area of three figures:

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Now that the area of all shape are calculated, you have to add them to determine the area of the logo:

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3 years ago
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Answer:

AMOS cameronbarlow52

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6 0
3 years ago
A pom-pom manufacturer makes each of its pom-poms with 35% white strands (w), 25% blue strands (b), and 40% red strands (r). If
DIA [1.3K]

Answer:

28 white strands , 20 blue strands and 32 red strands are needed to make a pair of pom-poms

Step-by-step explanation:

Given :A pom-pom manufacturer makes each of its pom-poms with 35% white strands (w), 25% blue strands (b), and 40% red strands (r).

To Find : If each pom-pom has a total of 80 strands, how many of strands of each color are needed to make a pair of pom-poms?

Solution:

Total Strands = 80

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No. of white strands = 35\% \times 80 =\frac{35}{100} \times 80 =28

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No. of Red strands = 40\% \times 80 =\frac{40}{100} \times 80 =32

Hence 28 white strands , 20 blue strands and 32 red strands are needed to make a pair of pom-poms

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Hope that helped!
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Elodia [21]

Answer:

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Step-by-step explanation:

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