Answer:

Step-by-step explanation:
The slope of
is:
The negative reciprocal of that slope is:
So the perpendicular line will have a slope of
:
And now put in the point
:
And that answer is OK, but let's also put it in
form:
Let the speed for the first 12 mi be x mi/h, the speed for 18 mi was (x+4) mi/h
thus given that
time=distance/speed
the average time will be:
3=(12+18)/(x+x+4)
3=30/(2x+4)
solving for x we get
3(2x+4)=30
6x+6=30
6x=24
x=4 mi/hr
Answer: 12 mi/hr
It would be in possession of the Palestinians
Answer:
The answer is 17 or x is 17