Jill has a mixture of sand and iron filings. The mass of the mixture is 250 g. Jill uses a magnet to separate the two substances. Then, she measures the mass of the sand as 150 g.
What should be the mass of the iron filings?
A.
It is impossible to determine.
B.
150 g
C.
100 g
Answers: 3
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Jill has a mixture of sand and iron filings. The mass of the mixture is 250 g. Jill uses a magnet to...
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