mathhelp
  • mathhelp
A motorboat can go 8 miles downstream on a river in 20 minutes. To travel the same 8 miles upstream, the boat takes 30 minutes. Find the speed of the current.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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bahrom7893
  • bahrom7893
I think you have to find speed in both cases and the difference will be the speed of the current: V1 = 8/20 V2 = 8/30 V = |V1-V2|
mathhelp
  • mathhelp
i have an equation set up but can u review it?
bahrom7893
  • bahrom7893
sure post it

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mathhelp
  • mathhelp
20r+20c=8 and 30r-30c=6
mathhelp
  • mathhelp
=8 not 6
anonymous
  • anonymous
Do you still need help
bahrom7893
  • bahrom7893
so what are u solving for, and i have no idea what those equations mean..
anonymous
  • anonymous
I think you can turn it into relative velocity problem
mathhelp
  • mathhelp
r= rate c=current
mathhelp
  • mathhelp
solve for currren...question is at the top
anonymous
  • anonymous
River speed+Boat Speed= Actual Speed
anonymous
  • anonymous
River speed we denote x for downstream -x for upstream
mathhelp
  • mathhelp
i need it done by the eqution i have set up

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