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Mathematics 16 Online
OpenStudy (anonymous):

help please :)

OpenStudy (anonymous):

@Vocaloid

OpenStudy (anonymous):

OpenStudy (anonymous):

Its the same question as before but i just wanted to make sure my steps are correct :)

OpenStudy (anonymous):

@Vocaloid

Vocaloid (vocaloid):

sure

OpenStudy (anonymous):

So for step 1 this is what i put... Width = 2 inches Height = 12 inches Length = 8 inches

Vocaloid (vocaloid):

right, next step?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

um for step 2 , i dont get it

OpenStudy (anonymous):

do you remember what the answer was?

Vocaloid (vocaloid):

a rectangle

OpenStudy (anonymous):

thats the answer for step 2?

Vocaloid (vocaloid):

yes

OpenStudy (anonymous):

ok let me type it

OpenStudy (anonymous):

ok now step 3

OpenStudy (anonymous):

the surface of the area is: 2*W*H + 2*L*W + 2*H*L

OpenStudy (anonymous):

correct for step 3?

Vocaloid (vocaloid):

you need to plug in height, width, and length

Vocaloid (vocaloid):

W = 2 inches H = 12 inches L = 8 inches 2*W*H + 2*L*W + 2*H*L = ?

OpenStudy (anonymous):

um, 272

Vocaloid (vocaloid):

right, so your surface area is 272

OpenStudy (anonymous):

ok so whats the complete answer for step 3

Vocaloid (vocaloid):

please read what question 3 is asking...

OpenStudy (anonymous):

its asking for the surface area of the box which is 272

Vocaloid (vocaloid):

right

OpenStudy (anonymous):

ok now step 4?

Vocaloid (vocaloid):

sure

OpenStudy (anonymous):

What is the surface area of the box if it is scaled up by a factor of 10?

Vocaloid (vocaloid):

we've done this before, remember? you multiply each dimension by 10, then you find the new surface area...

Vocaloid (vocaloid):

please review the link I sent you

OpenStudy (anonymous):

ok so, w=20 H= 120 L= 80

OpenStudy (anonymous):

@Vocaloid

OpenStudy (anonymous):

its you again!

Vocaloid (vocaloid):

great, now find the surface area

Vocaloid (vocaloid):

2*W*H + 2*L*W + 2*H*L = ?

OpenStudy (anonymous):

27,200

Vocaloid (vocaloid):

right

OpenStudy (anonymous):

is that the answer for step 4

Vocaloid (vocaloid):

yes

OpenStudy (anonymous):

ok now step 5

OpenStudy (anonymous):

What is the volume of the box?

Vocaloid (vocaloid):

use the dimensions from step 1 and find the volume

OpenStudy (anonymous):

how do i do that?

Vocaloid (vocaloid):

Width = 2 inches Height = 12 inches Length = 8 inches volume = ?

OpenStudy (anonymous):

192

Vocaloid (vocaloid):

right...

OpenStudy (anonymous):

ok now step 6

OpenStudy (anonymous):

What is the volume of the box if it is scaled down by a factor of 1/10?

Vocaloid (vocaloid):

ok, so find the volume...

OpenStudy (anonymous):

um, W=0.2 H= 1.2 L=0.8

Vocaloid (vocaloid):

great, now find the volume...

OpenStudy (anonymous):

how?

Vocaloid (vocaloid):

volume = w*h*l

OpenStudy (anonymous):

0.192

Vocaloid (vocaloid):

right

OpenStudy (anonymous):

thats it!

OpenStudy (anonymous):

thank you so much! your a great help and super smart :) You definitely deserve a medal!! :)

OpenStudy (anonymous):

\[2\div10\]

OpenStudy (anonymous):

\[\frac{ 1 }{ 10 }\]

OpenStudy (anonymous):

yup 1/10 is right Iv'e been watching the whole convo

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