All categories

3 years ago

12 hours to 15 hours, what is the percent of change

Mathematics

1 answer:

Mrac [35]3 years ago

6 0

Answer:

%25

Step-by-step explanation:

You might be interested in

NJI.IL ..

Aloiza [94]

Answer:

12.48

Step-by-step explanation:

12*1.04=12.48

3 0

3 years ago

What multiplication expression can you use to solve 2 divided by 8 4/5?

valina [46]

2*(5/44)

Dividing fractions means take the reciprocal of the second fraction then multiply
Find the reciprocal of 8 4/5
44/5 becomes 5/44
Then multiply by 2

8 0

3 years ago

Write all the factors of 21 .

xeze [42]

7x3x1 are the factors.

8 0

3 years ago

Read 2 more answers

The volume of a cone of radius r and height h is given by V=πr²h³. If the radius and the height both increase at a constant rate

Aloiza [94]

Answer:

The volume of cone is increasing at a rate 1808.64 cubic cm per second.

Step-by-step explanation:

We are given the following in the question:

$\dfrac{dr}{dt} = 12\text{ cm per sec}\\\\\dfrac{dh}{dt} = 12\text{ cm per sec}$

Volume of cone =

$V = \dfrac{1}{3}\pi r^2 h$

where r is the radius and h is the height of the cone.

Instant height = 9 cm

Instant radius = 6 cm

Rate of change of volume =

$\dfrac{dV}{dt} = \dfrac{d}{dt}(\dfrac{1}{3}\pi r^2 h)\\\\\dfrac{dV}{dt} = \dfrac{\pi}{3}(2r\dfrac{dr}{dt}h + r^2\dfrac{dh}{dt})$

Putting values, we get,

$\dfrac{dV}{dt} = \dfrac{\pi}{3}(2(6)(12)(9) + (6)^2(12))\\\\\dfrac{dV}{dt} =1808.64\text{ cubic cm per second}$

Thus, the volume of cone is increasing at a rate 1808.64 cubic cm per second.

5 0

3 years ago

Mr.Hollins determines that he gives 800 dollers each month if he gives away 16percent of his budget how much is his overall budg

kirill115 [55]

800 x 100 = 80000

80000 divided by 16 = 5000

5000 - 800 = 4200

His overall budget is $4200

8 0

3 years ago