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Mathematics, 21.11.2020 03:30 reinabrooke

2) La masse d’une mère ours est le quadruple de celui de son petit. Ensemble ils pèsent 350 kg. Quelle est la masse de l’ourson?

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2) La masse d’une mère ours est le quadruple de celui de son petit. Ensemble ils pèsent 350 kg. Quel...
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