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Mathematics 13 Online
OpenStudy (anonymous):

You can bike an average of 24 km per hour and run an average of 10 km per hour. If you run and bike a total of 23 km in 1.25 hours write and solve an equation to determine how long you bike and how long you run.

OpenStudy (anonymous):

Hours biking = b Hours running = r b(24) + r(10) = 23 b + r = 1.25

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