A woman wants to make a 4 in. wide copy of a drawing that is 5 in. wide. On the photocopier, what percent setting should she use to make a copy this size? A. 5%
B. 80%
C. 90%
D. 125%

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

this cant be answered without the graph. you may need to add it.

if i knew id you bro,, my bad