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Alex777 [14]
3 years ago
10

The average heart pumps about 80ml of Blood each contraction. if your heart rate was 70 beats per minute, calculate the volume o

f Blood your heart pumps in one minute when you are resting. show your calculation.
at this rate how much blood would your heart pump in one hour? show your calculation.
Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
5 0
The heart beat rate is 70beats/minute with 80ml of blood pumped every beat. Then, the <span>volume of blood your heart pumps in one minute would be:

volume of blood per minute= volume per beat * beat per minute
</span>volume of blood per minute= 80ml/beat * 70beat/minute= 560ml/ minute<span>

</span>volume of blood per hour would be: 560ml/minute * 60 minute/hour= 33.600 ml/hour
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Three times a number is the same as five more than twice the number
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5 0
4 years ago
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A new surgery is successful 85% of the time. If the results of 6 such surgeries are randomly sampled, what is the probability th
Leno4ka [110]

The probability that fewer than 4 of them are successful are 0.9527

<u>Explanation:</u>

Given:

number of trials, n = 6

p(successful) = 0.85

P(x >= 4) = ?

The problem can be solved using binomial probability formula.

 P(x >= 4) = 1 - binomcdf(6,0.85,4) = 1 - 0.0473

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8 0
4 years ago
1. Which of the following shows the correct use of the Distributive Property when solving 1/3( 33
vagabundo [1.1K]

Answer:

The option (\frac{1}{3}\times 33)-\frac{1}{3}y=\frac{1}{3}135.2 is correct

Step-by-step explanation:

Given equation is \frac{1}{3}(33-y)=135.2

The option shows correct usage of distributive property is

(\frac{1}{3}\times 33)-\frac{1}{3}y=\frac{1}{3}135.2

( by distributive property a(x+y)=ax+ay here a=\frac{1}{3}, x=33 and y=-y )

Therefore the option (\frac{1}{3}\times 33)-\frac{1}{3}y=\frac{1}{3}135.2 is correct.

5 0
3 years ago
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