A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
The volume of a can is 28.3 cubic inches (in.^3). If the radius and the height of the can are multiplied by a scale factor of 2, what is the volume of the new can?
 2 years ago
The volume of a can is 28.3 cubic inches (in.^3). If the radius and the height of the can are multiplied by a scale factor of 2, what is the volume of the new can?

This Question is Closed

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0Please tell me how you got to the answer, this kind of material will be in my test tomorrow.. x.x

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1What kind of can? I assume it is is a Cylinder but...

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0It just says that, so I would assume it's a cylinder. =P

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Well the volume of a cylinder is pi*r^2*h.

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1When something is multiplied by a factor you replace the ariable by that same factor.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0So... replace r with 2, that's all?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1And h. Do you understand why?

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0ahh sorry word problems get me. No I don't.

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1When you scale something or multiplying by a factor you are basically saying "two times more than the original value" .

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1So when I say I multiply by a factor of 5 I am basically saying "Take your original value and multiply by 5"

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0Somewhat. So in some case, just guessing, it'd be like half of the original amount given? 28.3? or... x.x; lol I mean I get I have to replace it and why now

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Or for instance, when I say I multiply something by a factor of 7 I am saying "Take your original number and replace it by 7 times the original value" .

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0So, basically when multiplying by a factor, you replace the other numbers? in this case the radius and the height?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah. Replace it by whatever factor times that number.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0so 25.12 would be wrong i suppose haha.. xD?

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0Sorry.. I learned this all before, but since it's a new teacher he shows us in a different way, and it's getting me all confused.. :/

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Well The volume is directly proportional to the height and the radius squared. So If you increases the radius and height by a certain factor the Volume increases by the same factor.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0honestly? still kinda lost. :

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Okay. Tell me what you don't understand.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0the thing i dont get is.. i get lost after they say the radius and height of the can are multiplied by the factor of 2

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0and i know 28.3 is the volume of the can

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0but im confused if ill need to use 28.3 # at all or just work out a certain equation like you said replace with the other things in my case i think this: 3.14(2)^2(2)

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Yeah you will use the 28.3

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Here Maybe a picture will help.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0oh i see, but.. then what's the radius? o.o

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1That's a badly drawn r XD .

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0XD! It's okay I understand. And I appreciate the help thanks a lot. i got a test tomorrow.. ><

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0and that teacher teaching his ways just gets me confused all the time, i mostly teach myself instead xD

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Did you understand me though?

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0somewhat, im confused as to what happened to r and pi though xD

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0and why group in the replaced 2 with the r if you'll be replacing it?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1The pi is still there. I replaced the radius with 2r because we are multiplying the radius by a factor of 2.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0so pretty much just leave the r alone, and just leave it aside and continue the problem?

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0as well as with pi? and just multiply the new factors 8 and 28.3

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1No... :P . Rather replace the r by 2r because we are multiplying the r by a factor of 2 and then square the resultant.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0oh i see. ok, but that doesn't explain why pi is practically gone lol

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1No no. The pi is there. We can't multiply pi by a factor because pi is a fixed, constant number.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0sorry if i got you frustrated haha.. =X

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0can ya help me with another one? similar stuff just finding the area of complex and irregular figures

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0dont gotta lol just asking if you can or want to.

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1No I mean, I might not be able to solve it.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0Oh , kk, uhm it's just algebra all the same. here it goes. A rectangular mirror is 24 inches by 48inches. The frame around the mirror is 3inches. wide. Find the area of the mirror including the frame.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0I multiplied 24 and 48 and got 1,152 but that would just be the mirror's area. I also need the frames

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Did you draw a picture?

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0Mhm. I shaded the frame to make it look differently. But i also tried multiplying all numbers and it doesn't add up

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0and i get a bit confused sometimes with this book with the problems cause sometimes they're 3 dimensional lol

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0and i mix up as to where to put the numbers on what side or what not

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0idk if im just messing myself up honestly haha

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0like i said i got 1152 lol

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1I think it's 1,620 inches ^2 .

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Here look at this picture.

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0So you're sharing all 3s down the middle? and breaking em down? to add 6 to both 24 and 48?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1yeah because we are given the frame is 3 inches wide right? So it's 3 inches wide everywhere. Does that make sense?

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0yes it does thank you very much, once again. :)

ryuu
 2 years ago
Best ResponseYou've already chosen the best response.0time to finish hw, bye, take care and i fan'd ya. :P
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.