1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
JulsSmile [24]
3 years ago
8

A cone-shaped coffee filter of radius 6 cm and depth 10 cm contains water, which drips out through a hole at the bottom at a con

stant rate of 1.5 cm3 per second. (a) If the filter starts out full, how long does it take to empty
Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Answer:

It takes 251.33 seconds to filter out full.      

Step-by-step explanation:

We are given the following in the question:

Radius of cone, r = 6 cm

Depth of cone,h = 10 cm

Volume of flow rate =

\dfrac{dv}{dt} = 1.5~ cm^3/s

Volume of cone-shaped coffee filter =

\dfrac{1}{3}\pi r^2 h

The volume of the cone when water start drips out =

\dfrac{1}{3}\pi r^2 h - 1.5t

Since, when the cone will be empty the volume of cone will be zero, thus we can write,

0 = \dfrac{1}{3}\pi r^2 h - 1.5t

Putting all the values, we get,

0 = \dfrac{1}{3}\pi (6)^2 (10) - 1.5t\\\\t = \dfrac{1}{1.5}\times \dfrac{1}{3}(3.14)(6)^2(10)\\\\t = 251.33 \text{ seconds}

Thus, it takes 251.33 seconds to filter out full.

You might be interested in
Any help is appreciated ​
8_murik_8 [283]

Answer:

It can't be C or D. I think it could be A.

7 0
3 years ago
Read 2 more answers
A is inversely proportional to b. If a=7.2 when b=-4, what will a equal when b=6?
Tpy6a [65]

Answer:

<h2>a = - 4.8</h2>

Step-by-step explanation:

To find the value of a when b=6 we must first find the relationship between them.

The statement

a is inversely proportional to b is written as

a \:  \:  \alpha  \:  \:  \frac{k}{b}

where k is the constant of proportionality

When a = 7.2 , b = -4

So we have

7.2=  \frac{k}{ - 4}

k = 7.2 × - 4

k = - 28.8

So the formula for the variation is

a =  -  \frac{28.8}{b}

When

b = 6

That's

a =  -  \frac{28.8}{6}

We have the final answer as

<h3>a = - 4.8</h3>

Hope this helps you

7 0
3 years ago
Increase £30 by 15% what is the answer
zheka24 [161]
30X15=450. 450:100= 4,50. 30+4,50= 34,50
7 0
3 years ago
A beautician sees clients each day to paint their nails. The function g(x) represents the number of finger nails painted, where
Bond [772]

Answer:D

Step-by-step explanation:

8 0
2 years ago
If a case of chips has 27 bags in it. How many cases would they need for 410 bags of chips?
kodGreya [7K]

Answer:

they would need 15 cases for 410 bag of chips

Step-by-step explanation:

410/7= about 15

3 0
2 years ago
Other questions:
  • There are three separate, equal-size boxes, and inside each box there are four separate small boxes, and inside each of the smal
    13·1 answer
  • Show how to solve 2/8 greater than 5/8
    8·1 answer
  • Factor the following using the GCF (Greatest Common Factor):
    7·1 answer
  • A random sample of 16 students selected from the student body of a large university had an average age of 25 years and a standar
    11·1 answer
  • What's the missing terms 5120, 1280, 320, 80,_, _
    5·1 answer
  • How can u describe how to find area and perimeter in your classroom
    14·1 answer
  • 24.92/1000 and show the work
    13·1 answer
  • PLEASE HELP!!! geometry!
    8·1 answer
  • Write a function rule for "the output is six times the input".
    7·1 answer
  • Write the equation of the line in fully simplified slope-intercept form. Pleaseee
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!