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xxTIMURxx [149]
3 years ago
6

A teenager’s heart pumps an average of 7200 L of blood every 24 hours. What is the rate of change of volume of blood?

Mathematics
1 answer:
love history [14]3 years ago
7 0

Answer:

300L per hour

Step-by-step explanation:

The rate of change of volume of blood pumped by the teenager's heart expresses the volume of blood pumped with respect to hour.

Rate of change of volume of blood = \frac{volume of blood}{time}

                           = \frac{7200L}{24}

                           = 300L/hour

The rate of change of volume of blood by the teenager's heart is 300 litres per hour. This implies that his/ her heart pumps 300 litres of blood every hour.

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Answer:

a. 3/13 or 23.08%

b. 1/13 or 7.69%

c. 1/4 or 25.00%

d. 1/52 or 1.92%

Step-by-step explanation:

Number of cards in a deck = 52

a. A face card

Considering there are four suits and each suit has three different face cards, the probability that the card is a cafe card is:

P_{F} =\frac{3*4}{52}\\ P_{F} =\frac{3}{13}

b. A queen

There are 4 queens in the deck, on of each suit, thus the probability of getting a queen is:

P_{Q} =\frac{4}{52}\\ P_{Q} =\frac{1}{13}

c. A spade

There are four suits with the same number of cards in a deck, therefore, the probability of getting a spade is:

P_{S} =\frac{1}{4}

d. A jack of spades

Since there are no repeated cards, there is only one jack of spades in a 52 cards deck:

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3 years ago
Twenty college students were asked for their number of close friends; persons who showed sympathy when needed and helped in hard
Nonamiya [84]

Answer:

The statistical population consists of all college students. The sample is the answers given by the twenty college students.

Step-by-step explanation:

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a food bank has 50 cans of vegetables 30 loaves of bread and 100 bottles of water. The volunteers will put the items into boxes.
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Step-by-step explanation:

3 0
3 years ago
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On a number​ line, suppose point E has a coordinate of -4 ​, and EG = 13. What are the possible coordinates of point​ G?
Ludmilka [50]

Answer:

9 or -17

Step-by-step explanation:

Hello!

The distance can be positive or negative, as we are just counting the number of units they are apart.

To find the possible coordinates for G, we can add or subtract 13 from -4 to find the possible coordinates for G.

<h3>Find G</h3>
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The possible coordinates of G are 9 or -17.

7 0
1 year ago
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