A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water a
nd the speed of the current.
1 answer:
Speed of the boat = u
speed of the current = v
in downstream,
u - v = 105/5
u - v = 21
in upstream
u + v = 105/7
u + v = 15
add both equations
2u = 36
u = 18
v = -3
so
speed of the boat = 18 km/h
speed of the current = 3 km/h
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<u>At Hayden's:</u>
<u>At Austins:</u>

As we can see in both results, it would take them
(4 hours) for the prices to be equaled.
-6x - 2y = -18
-6x - 2(0) = -18
-6x - 0 = -18
-6x = -18
-6 -6
x = 3
hope this helps :)
There are 24 half miles in 12 miles.
Answer: If you got 18 points out of 28 that would be like a 64 (D)
Step-by-step explanation: