anonymous
  • anonymous
The iron man triathlon competition has three events: swimming, cycling and running. One participant swam 10km in one hour, rode a bike 140km averaging 20km/h and then ran 24km averaging 10 minutes per km. What was iron man's average speed for the entire 174km of competition???
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
first try to find the amount of time in hours and the speed in km/h for each event, the last one is tricky so if its 24km and the speed is 10min/km its 24*10 so 240 mins=4 hours and since its 4 hours to run 24km then its 24/4 so 6 km/hr.
anonymous
  • anonymous
but then i still have to find the average for the entire thing right ?
anonymous
  • anonymous
how do i find average ?

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anonymous
  • anonymous
add up the speeds per distance travelled divided by the total different modes travelled (run, ride, swim would be 3 )
anonymous
  • anonymous
alright thank you :)!

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