A cylinder is full at 471 cubic centimeters and has a radius of 5 centimeters. It currently contains 314 cubic centimeters of water.

What is the difference between the height of the water in the full cylinder and the height when 314 cubic centimeters of water remains in the cylinder?

Use 3.14 for pi.
Enter your answer in the box.

Question

A cylinder is full at 471 cubic centimeters and has a radius of 5 centimeters. It currently contains 314 cubic centimeters of water.

What is the difference between the height of the water in the full cylinder and the height when 314 cubic centimeters of water remains in the cylinder?

Use 3.14 for pi.
Enter your answer in the box.

Lars · Answer

I think it's 297 cm but I don't know for sure

Joe348 · Answer

Use this formula :

$$v1=\pi/r^2$$

Joe348 · Answer

V= 471
R=3.14 
R^2=5

What do you get?

Lemondragon555 · Answer

lars i think you need a math tutor, seriously

Lars · Answer

Is this multiplication

@joe348 wrote:

V= 471 R=3.14 R^2=5 What do you get?

I'm doing?

Lars · Answer

@lemondragon555 wrote:

lars i think you need a math tutor, seriously

Yeah I probably do haha

Lemondragon555 · Answer

@lars wrote:

@lemondragon555 wrote:

lars i think you need a math tutor, seriously

Yeah I probably do haha

DUH

Joe348 · Answer

Okay so basically you're dividing but also multiplying kind of.

Lemondragon555 · Answer

huh

Joe348 · Answer

So it would be :

$$471/(3.14\times 5^2)$$

Joe348 · Answer

When you solve that what do you get?

Lemondragon555 · Answer

2. something

Lars · Answer

@joe348 wrote:

When you solve that what do you get?

2.88?

Joe348 · Answer

You should've got 6!

Lemondragon555 · Answer

so 5 squared is 10 so 3.14 x 10 =31.4 so 471 divided by 31.4

Lemondragon555 · Answer

@lemondragon555 wrote:

so 5 squared is 10 so 3.14 x 10 =31.4 so 471 divided by 31.4

is this right

Joe348 · Answer

5 squared does not each 10

Lemondragon555 · Answer

ok

Joe348 · Answer

When you square something you multiply.

Lemondragon555 · Answer

i know

Lemondragon555 · Answer

its just  a lot

Joe348 · Answer

$$5^2= 5 \times 5=25$$

Joe348 · Answer

Okay back to the question did you understand how I solved for the first part of the equation? @lars

Lars · Answer

@joe348 wrote:

Okay back to the question did you understand how I solved for the first part of the equation? @lars

Sorta

Lemondragon555 · Answer

soo its 25 x 3.14 = x so its 471 divided by x

Lemondragon555 · Answer

@lemondragon555 wrote:

soo its 25 x 3.14 = x so its 471 divided by x

is this rite

Joe348 · Answer

You're making it more complicated, please just let me finish!😅

Lemondragon555 · Answer

what i want to know

Joe348 · Answer

@lars wrote:

@joe348 wrote:

Okay back to the question did you understand how I solved for the first part of the equation? @lars

Sorta

Okay so the question is A cylinder is full at 471 cubic centimeters and has a radius of 5 centimeters. It currently contains 314 cubic centimeters of water. And I solved for the first part of the equation and now we are going to do the same exact thing except we are going to be using 314 cubic for V

Lemondragon555 · Answer

@arieonna

Arieonna · Answer

yes

Joe348 · Answer

So for the second part of the equation you have :

$$314/(3.14\times 5^2)$$
$$=4$$

Are you understanding it?

Lemondragon555 · Answer

@lemondragon555 wrote:

soo its 25 x 3.14 = x so its 471 divided by x

is this rite

is this right

Lemondragon555 · Answer

i need to know

Lars · Answer

@joe348 wrote:

So for the second part of the equation you have : $$314/(3.14\times 5^2)$$ $$=4$$ Are you understanding it?

Yes it's making a bit more sense, I think I understand how you solved this second part

Joe348 · Answer

There's no X in this equation but yes 471 divided by 25 times 3.14

Lars · Answer

@joe348 wrote:

There's no X in this equation but yes 471 divided by 25 times 3.14

Are you talking to me or lemon? Lol

Lemondragon555 · Answer

im using x becuz i dont know the real number

Lemondragon555 · Answer

@lars wrote:

@joe348 wrote:

There's no X in this equation but yes 471 divided by 25 times 3.14

Are you talking to me or lemon? Lol

i said the equation

Joe348 · Answer

@lars wrote:

@joe348 wrote:

So for the second part of the equation you have : $$314/(3.14\times 5^2)$$ $$=4$$ Are you understanding it?

Yes it's making a bit more sense, I think I understand how you solved this second part

Okay good! Now you're trying to find the difference between the two cylinders

Lemondragon555 · Answer

im so confused

Joe348 · Answer

So you know the first cylinder equals 6 and the second cylinder equals 4

To find the difference between them you are going to subtract 4 from 6

$$6-4=? $$

(Make sure to add centimeters to your answer!)

Lars · Answer

@joe348 wrote:

So you know the first cylinder equals 6 and the second cylinder equals 4 To find the difference between them you are going to subtract 4 from 6 $$6-4=? $$ (Make sure to add centimeters to your answer!)

6 minus 4 is 2cm

Joe348 · Answer

Yes you got it!

Lemondragon555 · Answer

what in the world

Lemondragon555 · Answer

i no comprehendo

Lars · Answer

@joe348 wrote:

Yes you got it!

Ohh yay thank you for explaining btw :)

Joe348 · Answer

What don't you understand?

Joe348 · Answer

Ofc, no problem!

Lemondragon555 · Answer

@joe348 wrote:

What don't you understand?

everything

Lars · Answer

Should I close the question now or keep it up since lemon doesn't understand?

Joe348 · Answer

Well I have to go, but if still want me to explain it, I'll be back tmrw maybe around 6-7pm!

Joe348 · Answer

You can close it.

Lars · Answer

@joe348 wrote:

You can close it.

Okay thank you again!!

Lemondragon555 · Answer

yeah close it

Joe348 · Answer

:)

Lemondragon555 · Answer

but im only 6th grade so