Answer:
3-n=14
Step-by-step explanation less than a number!!! If a number is unkown it would be a variable, a letter,
Answer:
After 900 minutes
Step-by-step explanation:
when we convert the velocities of the ships into miles/ min we get


The equations determining the distances of the ships from the port M (set at x=0) are
(for 45mph ship)
(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.
6 x 18
7 x 8
6 x 18 = 108
7 x 8 = 56
108 + 56 = 164