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3.
a student builds unifix cube towers to represent the ages of the five children in her family. she places them in order from smallest to largest. she removes the shortest and tallest tower then removes the next shortest and tallest tower. the tower in the middle is remaining. this student has just found which average?
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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

your answer is 125y5

answer: i dont know i want points

step-by-step explanation: