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a sphere made of steel is put in water and surprisingly it floats. develop a hypothesis to explain this observation.



Answer :

you first have to set it up as a proportion which would be:

 x  =        15

1000     100

The answer would be 100x=15000 after cross multiplying

After you divide 15000 by 100 you get x=150

That means that 150 people didn't answer the phone.

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