Mathematics, 02.03.2021 18:50 alexussaniyah
11. The ratio of a diamond's hardness to its specific gravity is 10:3.515,
and the ratio of the hardness to specific gravity for a ruby is 9:4.05.
Are these ratios in proportion? Explain your answer.
Answers: 1
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11. The ratio of a diamond's hardness to its specific gravity is 10:3.515,
and the ratio of the har...
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