*PLEASE HELP* *IRRELEVANT ANSWERS WILL BE REPORTED AS SPAM* A plane left Chicago at 8:00 A. M. At 1:00 P. M., the plane landed in Los Angeles, which is 1500 miles away. What was the average speed of the plane for the trip? (include units)

Find slope:
Then find the average speed of the plane for the trip

12/11c

or

12

c

11

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

the answer, i believe is y-8=1(x+4)