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3 years ago

A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?

Mathematics

2 answers:

Andre45 [30]3 years ago

7 0

Answer: 4000 beats per hour

Step-by-step explanation:

200 beats X 60 minutes

3 minutes 1 hour

The term 'minutes' cancel out therefore you are left with beats per hour

200 x 60 = 12000 = 4000 beats per hour

3 3

andreev551 [17]3 years ago

6 0

200 times / 3 minutes = x times / 60 minutes

3x = 12000

x = 4000 times in an hour

A person's heart will beat 4000 times in an hour.

Hope this helps!! :)

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The total sales of a company (in millions of dollars) t months from now are given by S(t) = 0.03t3 + 0.5t2 + 9t + 4. Find S'(t).

mars1129 [50]

Answer:

$S(2) = 24.24$ . This means that in the second month, the company will sell 24.24 millions of dollars in total.

$S'(2) = 11.36$ . This means that in the second month the total sales will increase in 11.36 millions of dollars from the previous month.

d. The total sales 11 months from now will be $203.43 million dollars.

Step-by-step explanation:

The total sales of the company, in millions of dollars is given by the following formula:

$S(t) = 0.03t^{3} + 0.5t^{2} + 9t + 4$

This function has the following derivative, which represents the variation in relation to the previous month.

$S'(t) = 0.09t^{2} + t + 9$

Find S(2) and S'(2)

$S(t) = 0.03t^{3} + 0.5t^{2} + 9t + 4$

$S(2) = 0.03*(2)^{3} + 0.5*(2)^{2} + 9*2 + 4 = 24.24$

$S(2) = 24.24$ . This means that in the second month, the company will sell 24.24 millions of dollars in total.

$S'(t) = 0.09t^{2} + t + 9$

$S'(2) = 0.09*2^{2} + 2 + 9 = 11.36$

$S'(2) = 11.36$ . This means that in the second month the total sales will increase in 11.36 millions of dollars from the previous month.

Choose the correct interpretation of S(11)=203.43.

S represents total sales, and S(11) is the total sales 11 months from now.

So the correct answer is:

d. The total sales 11 months from now will be $203.43 million dollars.

7 0

3 years ago

Carol had 9/12 of a container of milk for the french toast she was cooking. She poured 2/3 of the container into the pan. How mu

Effectus [21]

Answer:

1/12 of the container of milk will be left in the container

Step-by-step explanation:

To solve the question, we first note the variables

Volume of milk available = 9/12 of a container

Volume of milk poured in a pan = 2/3 of a container

Quantity of milk left = Initial quantity of milk less the quantity poured out

That is 9/12-2/3 = 1/12 of the container of milk

This means that there will be only 1/12 of the container of milk left

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3 years ago

Find the solution of the differential equation dy/dx=(x^2-y)/(x-y^2)

Ivan

Consider this option (basic steps are marked).

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3 years ago

Which of the following are solution to the inequality below -4w - 2 < -38

FromTheMoon [43]

Answer:

w > 9

Step-by-step explanation:

Solve the inequality by using inverse operations.

-4w - 2 < -38

-4w < -36

w > 9

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The scale on a map of Indiana is 1 inch=42 miles jill measured the distance on the map from the eastern border to the western bo

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Answer:

Step-by-step explanation:

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3 years ago

A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?​

A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?