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Mathematics, 31.08.2019 00:40 awgggg

06. kristen can run at 15km/hr and walk at 5 km/hr. she completed a 42 km marathon in 4 hours. what distance did kristen run during the marathon?

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06. kristen can run at 15km/hr and walk at 5 km/hr. she completed a 42 km marathon in 4 hours. what...
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