*System of equations AND Inequation* (Need help)

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The discussion revolves around solving a problem involving a system of equations related to an athlete's hiking ascent and descent speeds. The athlete ascends at 12 km/h and descends at 18 km/h, with the descent taking 15 minutes less than the ascent. Participants clarify that the correct approach involves setting up an equation based on the time difference and solving for the length of the slope, denoted as L. After some algebraic confusion, the correct solution is found to be L = 9 km. The conversation highlights the importance of careful unit management and algebraic manipulation in solving such problems.
  • #31
well..thx a lot for the help and sorry for the confusion.I guess i simply didnt translate the problem well (from french to english)...thx though
 

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