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Grade 11 Volume CCSS: HSG-MG.A.2
A block of rock is part granite and part silver. The block is a cube, with each side measuring 1.5 m. The total mass of it is 11,890 kg. What percent of the rock, by mass, is silver? The density of silver is 10.49 g/cm3 and the density of granite is 2.75 g/cm3. Round the answer to the nearest percent.
- 10%
- 30%
- 47%
- 90%