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Mathematics 13 Online
OpenStudy (anonymous):

The radii of Earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively. Approximately how many spheres the size of Pluto does it take to have the same volume as Earth?

OpenStudy (anonymous):

121 154 165 176 189

OpenStudy (kc_kennylau):

(Radius of Earth/Radius of Pluto)^3

OpenStudy (anonymous):

165

OpenStudy (anonymous):

thank u

OpenStudy (kc_kennylau):

yep :)

OpenStudy (kc_kennylau):

look at the units, the units tell you everything :)

OpenStudy (kc_kennylau):

radius is in km, volume is in km^3

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