Mathematics
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OpenStudy (anonymous):
help please :)
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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
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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?
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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
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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
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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
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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
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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 = ?
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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
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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
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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
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Vocaloid (vocaloid):
great, now find the volume...
OpenStudy (anonymous):
how?
Vocaloid (vocaloid):
volume = w*h*l
OpenStudy (anonymous):
0.192
Vocaloid (vocaloid):
right
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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