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Mathematics, 20.09.2020 16:01 webbhlharryteach

Kellis and David go for a 10-mile run. They start their run at the same time, but they run at different constant speeds. After 1 hour, David was 1 mile behind Kellis. David finished the run in 2.5 hours. At what speed was Kellis running, and how much earlier did she finish the run than David?

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Kellis and David go for a 10-mile run. They start their run at the same time, but they run at differ...
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