really took her dog for a walk they started walking West 43.5 they then they went East for 5.0 meters the entire walk took four hours what was the average speed for the entire trip

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

step-by-step explanation:

mean or average is 40.6

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