The river boat Delta Dunchess paddled upstream at 12km/h, stopped for 2h of sightseeing, and....?

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hi,

36 km

since 2 of 7 hours sightseeing, boat moved 5 hours. since distance/rate = time then:

..x......x
---.+.--- = 5
12...18

multiply every term 36 eliminate fractions.


36x...36x
---.+.--- = 36(5)
12...18

3x + 2x = 180
5x = 180
x = 36 boat went 36 km each way on trip.

hope helps!! :-)

the river boat delta dunchess paddled upstream @ 12km/h, stopped 2h of sightseeing, , paddled @ 18km/h. how far upstream did boat travel if total time trip, including stop, 7h?


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