Answer:
After 900 minutes
Step-by-step explanation:
when we convert the velocities of the ships into miles/ min we get
[tex]45mph=45m/60min=0.75m/min[/tex]
[tex]36mph=36m/60min=0.6m/min[/tex]
The equations determining the distances of the ships from the port M (set at x=0) are
[tex]D_1=0.75t[/tex] (for 45mph ship)
[tex]D_2=162+0.6(t-45)[/tex] (for 36mph ship)
The solution to these equation lie at t= 900 minutes; therefore the two ships will meet 900 minutes after the departure of the first ship.
