The radius of the large sphere is 3 times longer than the radius of the small sphere. How many times smaller than the volume of the large sphere is the volume of the small sphere?

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Verified Answer :

irspow irspow · Answer 1 · 2017-03-21T10:04:42-04:00

V=(4p(3r)^3)/3 and v=(4pr^3)/3

V/v=(3r)^3/(r^3)

V/v=9r^3/r^3

V/v=9

So the smaller sphere has a volume that is nine times smaller than the larger.

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calculista calculista · Answer 2 · 2019-02-09T17:18:48-05:00

Answer:

The volume of the smaller sphere is \(27\) times smaller than the volume of the larger sphere

Step-by-step explanation:

we know that

If two figures are similar then, the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z-------> the scale factor

x-------> the volume of the larger sphere

y-------> the volume of the smaller sphere

so

\(z^{3}=\frac{x}{y}\)

In this problem we have

\(z=3\)

substitute

\(3^{3}=\frac{x}{y}\)

\(27=\frac{x}{y}\)

\(y=x/27\) -----> The volume of the smaller sphere is \(27\) times smaller than the volume of the larger sphere

or

\(x=27y\) -----> The volume of the larger sphere is \(27\) times greater than the volume of the smaller sphere