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 one year 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?
 one year 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?

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

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

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

Dido525
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.0So... replace r with 2, that's all?

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

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

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

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

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

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

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

ryuu
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1Yeah you will use the 28.3

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

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

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

ryuu
 one year 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
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1Did you understand me though?

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

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

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

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

ryuu
 one year 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
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1Did you draw a picture?

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

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

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

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

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

ryuu
 one year ago
Best ResponseYou've already chosen the best response.0time to finish hw, bye, take care and i fan'd ya. :P
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