Question 195543
I have no idea what he base of a sphere is!
:
The ratio between the volumes of two spheres is 27 to 8.
 What is the ratio between their respective radii?
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Vol of the sphere formula: V = {{{(4/3)*pi*r^3}}} 
:
Two radii: r1 and r2
:
{{{27/8}}} = {{{((4/3)*pi*r1^3)/((4/3)*pi*r2^3)}}}
Cancel like terms:
{{{27/8}}} = {{{(r1^3)/(r2^3)}}}
Find the cube root of both sides
{{{3/2}}} = {{{r1/r2}}}