What is the length of a side of a cube with a volume of 64 cm3?
@Pawtpie
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OpenStudy (anonymous):
I'll try to keep my responses shorter lol
OpenStudy (anonymous):
V=s^3
OpenStudy (anonymous):
no it is fine this is the whole ?
OpenStudy (anonymous):
64=s^3
solve for s
OpenStudy (anonymous):
Where V is volume and s is side length
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OpenStudy (anonymous):
@shelbydancer ???
OpenStudy (anonymous):
sorry I needed a brake
OpenStudy (anonymous):
64/6=10.6666
OpenStudy (anonymous):
Not quite
OpenStudy (anonymous):
The volume of a cube is the side length cubed
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OpenStudy (anonymous):
So we need the cube root of the volume to get the side length
OpenStudy (anonymous):
more
OpenStudy (anonymous):
s^3 means you multiply s by s by s, so you have to take the cuberoot of 64, so you have to ask yourself what do you multiply by itself 3 times to get 64? For example 2 times 2 times 2=8 so 2 is the cbrt of 8
OpenStudy (anonymous):
multiply s by s by s
is that a 5 or a s
OpenStudy (anonymous):
s, the side length of the cube
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OpenStudy (anonymous):
s, and s stands for side length, what you're trying to solve for
OpenStudy (anonymous):
so how do I do this???
OpenStudy (anonymous):
So we need to find what number, when multiplied by itself 3 times equals 64.
OpenStudy (anonymous):
64/3=
OpenStudy (anonymous):
21
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OpenStudy (anonymous):
\[s * s * s = 64cm^3\]
OpenStudy (anonymous):
And we need to find s
OpenStudy (anonymous):
Do you know how square rooting works first of all?
OpenStudy (anonymous):
how
OpenStudy (anonymous):
Ok for instance, lets find the square root of 9.
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OpenStudy (anonymous):
That means, what number, when multiplied by itself, gives us 9?
OpenStudy (anonymous):
3
OpenStudy (anonymous):
Correct, 3 times itself, so 3 * 3 = 9
OpenStudy (anonymous):
So 3 is the square root of 9
OpenStudy (anonymous):
What we need to do is find the CUBE root of 64
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OpenStudy (anonymous):
So a number, multiplied by itself, multiplied by itself again, equaling 64
OpenStudy (anonymous):
Lets just take a random number
OpenStudy (anonymous):
What would be 3 cubed
\[3^3\]
OpenStudy (anonymous):
So \[3 * 3 * 3\]
OpenStudy (anonymous):
27
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OpenStudy (anonymous):
Okay, so that means 3 is the cube root of 27
OpenStudy (anonymous):
side of a cube with a volume of 64 cm3?
OpenStudy (anonymous):
Correct
OpenStudy (anonymous):
So a number times itself 3 times equaling 64
OpenStudy (anonymous):
please hurry my mom wants me done tonight by 11:30
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OpenStudy (anonymous):
Try 4
OpenStudy (anonymous):
so 4 * 4 * 4 is
OpenStudy (anonymous):
64
OpenStudy (anonymous):
So the side length is 4 cm.
OpenStudy (anonymous):
thax
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OpenStudy (anonymous):
What time is it currently?
OpenStudy (anonymous):
It's 1:06 AM here
OpenStudy (anonymous):
where are u
OpenStudy (anonymous):
Eastern time
OpenStudy (anonymous):
o standered mt.
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