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Mathematics, 14.01.2021 02:20 steloiryancy

Mandy knows that a 5 meter long bar has a mass 40 kg. She wants to figure out the the mass (w) of a 3 meter long bar.

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Mandy knows that a 5 meter long bar has a mass 40 kg. She wants to figure out the the mass (w) of a...
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