BernardineBalowsk732 BernardineBalowsk732
  • 14-07-2014
  • Mathematics
contestada

the volumes of two spheres are 729 in3 and 27 in3. what is the ratio of their radii, rounded to the nearest whole number?

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AL2006
AL2006 AL2006
  • 14-07-2014
The volumes of spheres are proportional to R³. So their 'R's
are proportional to ∛their volumes.

(729/ 27) = 27

∛27 = exactly 3 .  No rounding required.
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