Ahunter wishes to cross a river that is 1.2 km wide and that flows with a speed of 4.7 km/h. the hunter uses a small powerboat that moves at a maximum speed of 12.7 km/h with respect to the water. what is the minimum time necessary for crossing?

0.095 hours = 5.7 mins

Explanation:

from the questions we are given the following:

distance (s) = 4.7 km/h

maximum speed of boat with respect to the water (S) = 12.7 km/h

speed of flowing water = 4.7 km/h

minimum crossing time =?

the minimum crossing time can be gotten from the formula

time =

in this question we would not be considering the speed of the flowing water because we were told to find the minimum time to cross with a boat moving at a maximum speed with respect to the flowing water

time =  

= 0.095 hours = 5.7 mins

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

hypothesising or postulating