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# Amotor boat goes 240 km. downstream in the same time it can go 180 km. upstream. the speed of the current is 4 kph. find the speed of boat in still water.

• Réponse publiée par: hellcrack777

3kph

Step-by-step explanation:

• Réponse publiée par: elaineeee

25mph po ang sagot

Step-by-step explanation:

=

240 (x - 5)= 160 (x+5)

240x - 1200 = 160x +80

80x =2000

x =25mph

• Réponse publiée par: 09330399672

the speed of boat in still the water is 80 miles downstream

step-by-step explanation:

• Réponse publiée par: elaineeee

di ko din alam yan ano ba sagot

• Réponse publiée par: 09389706948

Kd is the only one I have seen so long ago as a I have a lot to do with it was my best top choice in the world girls to the

• Réponse publiée par: elaineeee

Step-by-step explanation:

x = speed of the boat

from the formula

d=st

d is distance

s is speed

t is time

t = d/s

upstream: (the boat is moving against the current)

t1 = 160/(x - 5)

downstream: (the boat is moving along with the current)

t2 = 240/(x + 5)

since t1 is equal to t2

160/(x - 5) = 240/(x + 5) (cross multiply)

160(x + 5) = 240(x - 5)

160x + 800 = 240x - 1200

x = 25 km/hr

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Amotor boat goes 240 km. downstream in the same time it can go 180 km. upstream. the speed of the cu...