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 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?

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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
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