6. a boat with speed of 1.20 km/h relative to the water is heading for a dock 2.29
km downstream. if the river speed is 0.384 km/h, how many minutes will it take
to reach the dock?

87 min

Explanation:

The speed of the boat will be its speed relative to the river plus the the speed of the river :

(1)

(2)

(3)

On the other hand, the speed of the boat is given by a relation between its traveled distance and the time :

(4)

Isolating and knowing :

(5)

(6)

(7)

Hence the time in minutes is 87 min.

are their multiple choices ?

explanation:

i believe it is b. what was the cause of the big bang

hope this !