Question 1197148
<font color=black size=3>
x = number of hours
y = distance from the harbor


Tugboat A is already 20 miles east of the harbor. 
It travels 40 mph to the east
The equation for tugboat A is y = 40x+20


The equation for tugboat B is y = 50x since it travels east at a speed of 50 mph.


Set the right hand sides equal to one another to determine when the two boats meet up.
50x = 40x+20
50x-40x = 20
10x = 20
x = 20/10
x = 2


Answer: 2 hours
</font>