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8090 [49]
3 years ago
13

The hardness of a steel nail is about 5.5 a certain mineral scratches a steel nail but does not scratch quartz. What could the h

ardness of mineral be

Biology
2 answers:
KiRa [710]3 years ago
8 0
What are the rest of the options under the question?
Whitepunk [10]3 years ago
7 0

Answer:

Pick any answer between 5.5 and 7. If you have 6 choose it.

Explanation:

Quartz has a hardness of 7.

The steel ball is 5.5

The mineral must be between these two values. Written mathematically

5.5 < x < 7

So pick any value that is between 5.5 and 7.  The other choices would be valuable.

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